1
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Sprega G, Kobidze G, Lo Faro AF, Pichini S, Farkas T, Tini A, Mskhiladze A, Busardò FP, Chankvetadze B. Optimization of enantioselective high-performance liquid chromatography-tandem mass spectrometry method for the quantitative determination of 3,4-methylenedioxy-methamphetamine (MDMA) and its phase-1 metabolites in human biological fluids. J Pharm Biomed Anal 2024; 243:116076. [PMID: 38430614 DOI: 10.1016/j.jpba.2024.116076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 02/12/2024] [Accepted: 02/26/2024] [Indexed: 03/05/2024]
Abstract
Recently we published in this journal an enantioselective high-performance liquid chromatography-tandem mass spectrometry (LC-MS/MS) method for the quantitative determination of 3,4-methylenedioxymethamphetamine (MDMA) and its major phase-1 metabolites, 4-hydroxy-3-methoxyamphetamine (HMA), 4-hydroxy-3-methoxymethamphetamine (HMMA) and 3,4-methylenedioxyamphetamine (MDA) in human plasma, sweat, oral fluid and urine. Since we did not achieve simultaneous enantioseparation of all 4 compounds with a single chiral column, two amylose-based chiral columns were used alternatively. Further optimization of the mobile phase in the present study enabled baseline separation of all four pairs of enantiomers on a single Lux AMP column. In addition, by optimization of the column dimension and applied flow-rate it became possible to complete the separation within 6 minutes. These new methods were applied to the analysis of human plasma, oral fluid and urine. While results on the concentration of MDMA and its metabolites in various biological fluids were reported in our recent publication, in the present study an attempt was made to hydrolyze glucuronides in urine samples by using alternatively, hydrochloric acid or glucuronidase and to evaluate the effect of hydrolysis on the concentration and enantiomeric distribution of hydroxy metabolites of MDMA such as HMA and HMMA.
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Affiliation(s)
- Giorgia Sprega
- Department of Excellence-Biomedical Sciences and Public Health, Università Politecnica delle Marche, Ancona 60121, Italy
| | - Giorgi Kobidze
- Department of Excellence-Biomedical Sciences and Public Health, Università Politecnica delle Marche, Ancona 60121, Italy
| | - Alfredo Fabrizio Lo Faro
- Department of Excellence-Biomedical Sciences and Public Health, Università Politecnica delle Marche, Ancona 60121, Italy.
| | - Simona Pichini
- National Centre on Addiction and Doping, Istituto Superiore di Sanità, Rome, Italy
| | - Tivadar Farkas
- Phenomenex Inc., 411 Madrid Ave, Torrance, CA 90501, USA
| | - Anastasio Tini
- Department of Excellence-Biomedical Sciences and Public Health, Università Politecnica delle Marche, Ancona 60121, Italy
| | - Antonina Mskhiladze
- Faculty of Natural Sciences, Mathematics, Technologies and Pharmacy, Sokhumi State University, Polytkovskaya 61, Tbilisi 0186, Georgia
| | - Francesco Paolo Busardò
- Department of Excellence-Biomedical Sciences and Public Health, Università Politecnica delle Marche, Ancona 60121, Italy
| | - Bezhan Chankvetadze
- Institute of Physical and Analytical Chemistry, School of Exact and Natural Sciences, Tbilisi State University, I. Chavchavadze Ave 1, Tbilisi 0179, Georgia
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2
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Huang J, Wang X, Huang T, Yang Y, Tu J, Zou J, Yang H, Yang R. Application of sodium sulfobutylether-β-cyclodextrin based on encapsulation. Carbohydr Polym 2024; 333:121985. [PMID: 38494236 DOI: 10.1016/j.carbpol.2024.121985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 02/06/2024] [Accepted: 02/23/2024] [Indexed: 03/19/2024]
Abstract
Sodium Sulfobutylether-β-cyclodextrin (SBE-β-CD) is a derivative of β-cyclodextrin, characterized by its stereo structure, which closely resembles a truncated cone with a hydrophobic internal cavity. The solubility of insoluble substances within the hydrophobic cavity is significantly enhanced, reducing contact between the guest and the environment. Consequently, SBE-β-CD is frequently employed as a co-solvent and stabilizer. As the research progresses, it has been observed that the inclusion of SBE-β-CD is reversible and competitive. Besides, some inclusion complexes undergo distinct physicochemical property alterations compared to the guests. Additionally, certain guests exhibit varying inclusions with SBE-β-CD at different concentrations. These features have contributed to the expanding applications. SBE-β-CD finds widespread application in pharmaceutics as a protective agent and pKa regulator, in pharmaceutical analysis as a chiral substance separator, and in biomedical engineering for encapsulating dyes and modifying sensors. The article will elaborate in detail on the physicochemical properties of SBE-β-CD, encapsulation principles, and factors influencing the formation of inclusion complexes. Furthermore, the review focuses on the application of SBE-β-CD through encapsulation in pharmaceutics, pharmaceutical analysis, and biomedical engineering. Finally, the prospects and potential applications of SBE-β-CD are discussed.
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Affiliation(s)
- Jiaqi Huang
- Center for Research Development and Evaluation of Pharmaceutical Excipients and Generic Drugs, Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China; National Institutes for Food and Drug Control, National Key Laboratory for Quality Control of Pharmaceutical Excipients, Beijing 100050, China
| | - Xiaofeng Wang
- National Institutes for Food and Drug Control, National Key Laboratory for Quality Control of Pharmaceutical Excipients, Beijing 100050, China
| | - Ting Huang
- Center for Research Development and Evaluation of Pharmaceutical Excipients and Generic Drugs, Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China; National Institutes for Food and Drug Control, National Key Laboratory for Quality Control of Pharmaceutical Excipients, Beijing 100050, China
| | - Yang Yang
- Center for Research Development and Evaluation of Pharmaceutical Excipients and Generic Drugs, Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China; National Institutes for Food and Drug Control, National Key Laboratory for Quality Control of Pharmaceutical Excipients, Beijing 100050, China
| | - Jiasheng Tu
- Center for Research Development and Evaluation of Pharmaceutical Excipients and Generic Drugs, Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Jian Zou
- National Institutes for Food and Drug Control, National Key Laboratory for Quality Control of Pharmaceutical Excipients, Beijing 100050, China
| | - Huiying Yang
- National Institutes for Food and Drug Control, National Key Laboratory for Quality Control of Pharmaceutical Excipients, Beijing 100050, China.
| | - Rui Yang
- National Institutes for Food and Drug Control, National Key Laboratory for Quality Control of Pharmaceutical Excipients, Beijing 100050, China.
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3
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Garcia AD, Leyva V, Bocková J, Pepino RL, Meinert C. Resolution and quantification of carbohydrates by enantioselective comprehensive two-dimensional gas chromatography. Talanta 2024; 271:125728. [PMID: 38316075 DOI: 10.1016/j.talanta.2024.125728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 01/18/2024] [Accepted: 01/27/2024] [Indexed: 02/07/2024]
Abstract
Carbohydrates, in particular the d-enantiomers of ribose, 2-deoxyribose, and glucose, are essential to life's informational biopolymers (RNA/DNA) and for supplying energy to living cells through glycolysis. Considered to be potential biosignatures in the search of past or present life, our capacity to detect and quantify these essential sugars is crucial for future space missions to the Moon, Mars or Titan as well as for sample-return missions. However, the enantioselective analysis of carbohydrates is challenging and both research and routine applications, are lacking efficient methods that combine highly sensitive and reproducible detection with baseline enantioselective resolution and reliable enantiomeric excess (ee) measurements. Here, we present four different derivatization strategies in combination with multidimensional gas chromatography coupled to a reflectron time-of-flight mass spectrometer (GC×GC-TOF-MS) for the enantioselective resolution of C3 to C6 carbohydrates potentially suitable for sample-return analyses. Full mass spectral interpretation and calibration curves for one single-step (cyclic boronate derivatives) and three two-step derivatization protocols (aldononitrile-acetate, hemiacetalization-trifluoroacetylation, and hemiacetalization-permethylation) are presented for concentrations ranging from 1 to 50 pmol μL⁻1 with correlation coefficients R2 > 0.94. We compared several analytical parameters including reproducibility, sensitivity (LOD and LOQ), overall separation, chiral resolution (RS), mass spectrum selectivity, stability during long term storage, and reliability of ee measurements to guide the application-dependent selection of optimal separation and quantification performance.
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Affiliation(s)
- Adrien D Garcia
- Université Côte d'Azur, CNRS, Institut de Chimie de Nice UMR 7272, Nice, France
| | - Vanessa Leyva
- Université Côte d'Azur, CNRS, Institut de Chimie de Nice UMR 7272, Nice, France
| | - Jana Bocková
- Université Côte d'Azur, CNRS, Institut de Chimie de Nice UMR 7272, Nice, France
| | - Raphaël L Pepino
- Université Côte d'Azur, CNRS, Institut de Chimie de Nice UMR 7272, Nice, France
| | - Cornelia Meinert
- Université Côte d'Azur, CNRS, Institut de Chimie de Nice UMR 7272, Nice, France.
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4
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Liu C, Guo P, Ran XY, Zhu YL, Wang BJ, Zhang JH, Xie SM, Yuan LM. Chiral-induced synthesis of chiral covalent organic frameworks core-shell microspheres for HPLC enantioseparation. Mikrochim Acta 2024; 191:281. [PMID: 38649632 DOI: 10.1007/s00604-024-06347-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Accepted: 04/04/2024] [Indexed: 04/25/2024]
Abstract
Two chiral covalent organic frameworks (CCOFs) core-shell microspheres based on achiral organic precursors by chiral-induced synthesis strategy for HPLC enantioseparation are reported for the first time. Using n-hexane/isopropanol as mobile phase, various kinds of racemates were selected as analytes and separated on the CCOF-TpPa-1@SiO2 and CCOF-TpBD@SiO2-packed columns with a low column backpressure (3 ~ 9 bar). The fabricated two CCOFs@SiO2 chiral columns exhibited good separation performance towards various racemates with high column efficiency (e.g., 19,500 plates m-1 for (4-fluorophenyl)ethanol and 18,900 plates m-1 for 1-(4-chlorophenyl)ethanol) and good reproducibility. Some effects have been investigated such as the analyte mass and column temperature on the HPLC enantioseparation. Moreover, the chiral separation results of the CCOF-TpPa-1@SiO2 chiral column and the commercialized Chiralpak AD-H column show a good complementarity. This study demonstrates that the usage of chiral-induced synthesis strategy for preparing CCOFs core-shell microspheres as a novel stationary phase has a good application potential in HPLC.
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Affiliation(s)
- Cheng Liu
- Department of Chemistry, Yunnan Normal University, Kunming, 650500, People's Republic of China
| | - Ping Guo
- Department of Chemistry, Yunnan Normal University, Kunming, 650500, People's Republic of China
| | - Xiao-Yan Ran
- Department of Chemistry, Yunnan Normal University, Kunming, 650500, People's Republic of China
| | - Yu-Lan Zhu
- Department of Chemistry, Yunnan Normal University, Kunming, 650500, People's Republic of China
| | - Bang-Jin Wang
- Department of Chemistry, Yunnan Normal University, Kunming, 650500, People's Republic of China
| | - Jun-Hui Zhang
- Department of Chemistry, Yunnan Normal University, Kunming, 650500, People's Republic of China.
| | - Sheng-Ming Xie
- Department of Chemistry, Yunnan Normal University, Kunming, 650500, People's Republic of China.
| | - Li-Ming Yuan
- Department of Chemistry, Yunnan Normal University, Kunming, 650500, People's Republic of China
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5
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Coelho MM, Costa I, de Albuquerque ACF, Santos Junior FMD, Silva B, Silva R, Fernandes C, Remião F, Tiritan ME. Milligram scale enantioresolution of promethazine and its main metabolites, determination of their absolute configuration and assessment of enantioselective effects on human SY-SY5Y cells. J Pharm Biomed Anal 2024; 245:116152. [PMID: 38643704 DOI: 10.1016/j.jpba.2024.116152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2024] [Revised: 04/07/2024] [Accepted: 04/14/2024] [Indexed: 04/23/2024]
Abstract
The misuse of pharmaceuticals has significantly increased in recent decades, becoming a major public health concern. The risks associated with medication misuse are particularly high in cases of overdose, especially when the active substances are chiral, as enantioselectivity plays an important role in toxicity. Promethazine (PMZ) is a chiral antihistamine marketed as a racemate and it is misused in "Purple Drank", a recreational drug beverage, that combines codeine and/or PMZ, with soda or alcohol leading to serious health consequences and fatalities in consumers around the world, particularly among teenagers. Information regarding the enantioselectivity in the toxicity of (R,S)-PMZ and its main metabolites, namely promethazine sulfoxide (PMZSO) and desmonomethyl promethazine (DMPMZ), is unknown. This work reported, for the first time, the enantioseparation, in milligram scale, of (R,S)-PMZ, (R,S)-DMPMZ, (R,S)- PMZSO and the determination of their absolute configurations by electronic circular dichroism (ECD). The enantioseparation of all the six enantiomers was accomplished in a homemade semi-preparative column with amylose tris-3,5-dimethylphenylcarbamate (AD) coated with aminopropyl Nucleosil silica. The enantiomeric purity was evaluated using the analytical Lux® 3 µm i-Amylose-3 column, yielding enantiomeric purity values ranging between 94.4% and 99.7%. The elution order of all the enantiomers was accomplished combining the ECD results with an optical rotation detector. The elution order of the enantiomers was influenced only by the chiral selector, rather than the mobile phase. The cytotoxicity of the racemates and the isolated enantiomers towards differentiated SH-SY5Y cells was evaluated. (R,S)-DMPMZ exhibited a significantly higher cytotoxicity than (R,S)-PMZ, suggesting the metabolic bioactivation of (R,S)-PMZ. Conversely, no significant cytotoxicity was found for (R,S)-PMZSO, underscoring a metabolic detoxification pathway. Remarkably, enantioselectivity was observed for the cytotoxicity of PMZ; (R)-PMZ was significantly more cytotoxic than (S)-PMZ. The results underscore the importance to isolate the enantiomers in their enantiomerically form and their correct identification for toxicity enantioselectivity studies, which are vital to understand the drug's behaviour and safety, especially in case of overdoses.
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Affiliation(s)
- Maria Miguel Coelho
- Laboratory of Organic Chemistry and Pharmaceuticals, Department of Chemical Sciences, Faculty of Pharmacy of the University of Porto, Porto 4050-313, Portugal; CIIMAR-Interdisciplinary Center of Marine and Environmental Research University of Porto, Porto de Leixões Cruise Terminal, Matosinhos 4450-208, Portugal; Associate Laboratory i4HB-Insitute for Health and Bioeconomy, Faculty of Pharmacy, University of Porto, Porto 4050-313, Portugal
| | - Inês Costa
- Associate Laboratory i4HB-Insitute for Health and Bioeconomy, Faculty of Pharmacy, University of Porto, Porto 4050-313, Portugal; UCIBIO-Applied Molecular Biosciences Unit, Laboratory of Toxicology, Department of Biological Sciences, Faculty of Pharmacy, University of Porto, Porto 4050-313, Portugal
| | | | | | - Bárbara Silva
- Associate Laboratory i4HB-Insitute for Health and Bioeconomy, Faculty of Pharmacy, University of Porto, Porto 4050-313, Portugal; UCIBIO-Applied Molecular Biosciences Unit, Laboratory of Toxicology, Department of Biological Sciences, Faculty of Pharmacy, University of Porto, Porto 4050-313, Portugal
| | - Renata Silva
- Associate Laboratory i4HB-Insitute for Health and Bioeconomy, Faculty of Pharmacy, University of Porto, Porto 4050-313, Portugal; UCIBIO-Applied Molecular Biosciences Unit, Laboratory of Toxicology, Department of Biological Sciences, Faculty of Pharmacy, University of Porto, Porto 4050-313, Portugal
| | - Carla Fernandes
- Laboratory of Organic Chemistry and Pharmaceuticals, Department of Chemical Sciences, Faculty of Pharmacy of the University of Porto, Porto 4050-313, Portugal; CIIMAR-Interdisciplinary Center of Marine and Environmental Research University of Porto, Porto de Leixões Cruise Terminal, Matosinhos 4450-208, Portugal
| | - Fernando Remião
- Associate Laboratory i4HB-Insitute for Health and Bioeconomy, Faculty of Pharmacy, University of Porto, Porto 4050-313, Portugal; UCIBIO-Applied Molecular Biosciences Unit, Laboratory of Toxicology, Department of Biological Sciences, Faculty of Pharmacy, University of Porto, Porto 4050-313, Portugal
| | - Maria Elizabeth Tiritan
- Laboratory of Organic Chemistry and Pharmaceuticals, Department of Chemical Sciences, Faculty of Pharmacy of the University of Porto, Porto 4050-313, Portugal; CIIMAR-Interdisciplinary Center of Marine and Environmental Research University of Porto, Porto de Leixões Cruise Terminal, Matosinhos 4450-208, Portugal; 1H-TOXRUN - One Health Toxicology Research Unit, University Institute of Health Sciences (IUCS), CESPU, CRL, Gandra 4585-116, Portugal.
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6
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Li T, Li H, Chen J, Yu Y, Chen S, Wang J, Qiu H. Preparation and evaluation of two chiral stationary phases based on imidazolyl-functionalized bromoethoxy pillar[5]arene-bonded silica. J Chromatogr A 2024; 1720:464799. [PMID: 38458140 DOI: 10.1016/j.chroma.2024.464799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Revised: 03/01/2024] [Accepted: 03/04/2024] [Indexed: 03/10/2024]
Abstract
Chiral pillar[5]arene-based mesoporous silica, an emerging class of chiral structure, possesses excellent characteristics such as abundant chiral active sites, encapsulated cavity and excellent chiral modification, which make them a promising candidate as new chiral stationary phases (CSPs) in enantioseparation. In this study, two imidazole-containing (S)-1-(4-phenyl-1H-imidazol-2-yl)ethanamine and (S)-Histidinol were respectively modified to bromoethoxy pillar[5]arene-bonded silica to construct new chiral stationary phases (sPIE-BP5-Sil and sHol-BP5-Sil) for the separation and analysis of enantiomers. The separation conditions such as mobile phase composition, flow rate and temperature were optimized. Under optimal conditions, both sPIE-BP5-Sil and sHol-BP5-Sil showed good separation performance for different types of enantiomers. Interestingly, sPIE-BP5-Sil and sHol-BP5-Sil showed better enantioselectivity for chiral aromatic compounds and chiral aliphatic compounds, respectively. This enantioseparation result was closely related to the presence of additional aromatic rings and abundant hydroxyl groups in the side chains of the two chiral groups. In addition, the enantioseparation process was further studied by molecular docking simulation. Therefore, this work provided a new strategy for the preparation and application of imidazolyl-derived pillar[5]arene-based chiral stationary phases, which can be efficiently used for screening and separating enantiomers.
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Affiliation(s)
- Tong Li
- Department of Chemistry, Research Center for Analytical Sciences, College of Sciences, Northeastern University, Shenyang 110819, China; CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Hui Li
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China.
| | - Jia Chen
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Yongliang Yu
- Department of Chemistry, Research Center for Analytical Sciences, College of Sciences, Northeastern University, Shenyang 110819, China
| | - Shuai Chen
- Department of Chemistry, Research Center for Analytical Sciences, College of Sciences, Northeastern University, Shenyang 110819, China.
| | - Jianhua Wang
- Department of Chemistry, Research Center for Analytical Sciences, College of Sciences, Northeastern University, Shenyang 110819, China
| | - Hongdeng Qiu
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China.
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7
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Naser Aldine F, Singh AN, Wang H, Makey DM, Barrientos RC, Wong M, Aggarwal P, Regalado EL, Ahmad IAH. Improved assay development of pharmaceutical modalities using feedback-controlled liquid chromatography optimization. J Chromatogr A 2024; 1722:464830. [PMID: 38608366 DOI: 10.1016/j.chroma.2024.464830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Revised: 03/18/2024] [Accepted: 03/20/2024] [Indexed: 04/14/2024]
Abstract
Development of meaningful and reliable analytical assays in the (bio)pharmaceutical industry can often be challenging, involving tedious trial and error experimentation. In this work, an automated analytical workflow using an AI-based algorithm for streamlined method development and optimization is presented. Chromatographic methods are developed and optimized from start to finish by a feedback-controlled modeling approach using readily available LC instrumentation and software technologies, bypassing manual user intervention. With the use of such tools, the time requirement of the analyst is drastically minimized in the development of a method. Herein key insights on chromatography system control, automatic optimization of mobile phase conditions, and final separation landscape for challenging multicomponent mixtures are presented (e.g., small molecules drug, peptides, proteins, and vaccine products) showcased by a detailed comparison of a chiral method development process. The work presented here illustrates the power of modern chromatography instrumentation and AI-based software to accelerate the development and deployment of new separation assays across (bio)pharmaceutical modalities while yielding substantial cost-savings, method robustness, and fast analytical turnaround.
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Affiliation(s)
- Fatima Naser Aldine
- Analytical Research and Development, MRL, Merck & Co., Inc., Rahway, NJ 07065, USA
| | - Andrew N Singh
- Analytical Research and Development, MRL, Merck & Co., Inc., Rahway, NJ 07065, USA
| | - Heather Wang
- Analytical Research and Development, MRL, Merck & Co., Inc., Rahway, NJ 07065, USA
| | - Devin M Makey
- Analytical Research and Development, MRL, Merck & Co., Inc., Rahway, NJ 07065, USA; Department of Chemistry, University of Michigan, Ann Arbor, MI 48109, USA
| | - Rodell C Barrientos
- Analytical Research and Development, MRL, Merck & Co., Inc., Rahway, NJ 07065, USA
| | - Michelle Wong
- Analytical Research and Development, MRL, Merck & Co., Inc., Rahway, NJ 07065, USA
| | - Pankaj Aggarwal
- Analytical Research and Development, MRL, Merck & Co., Inc., Rahway, NJ 07065, USA
| | - Erik L Regalado
- Analytical Research and Development, MRL, Merck & Co., Inc., Rahway, NJ 07065, USA
| | - Imad A Haidar Ahmad
- Analytical Research and Development, MRL, Merck & Co., Inc., Rahway, NJ 07065, USA.
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8
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Ma M, Zhang Y, Huang F, Xu Y. Chiral hydroxyl-controlled covalent organic framework-modified stationary phase for chromatographic enantioseparation. Mikrochim Acta 2024; 191:203. [PMID: 38492084 DOI: 10.1007/s00604-024-06289-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Accepted: 02/27/2024] [Indexed: 03/18/2024]
Abstract
Chiral covalent organic frameworks (CCOFs) possess a superior chiral recognition environment, abundant pore configuration, and favorable physicochemical stability. In the post-synthetic chiral modification of COFs, research usually focused on increasing the density of chiral sites as much as possible, and little attention has been paid to the influence of the density of chiral sites on the spatial structure and chiral separation performance of CCOFs. In this article, 1,3,5-tris(4-aminophenyl) benzene (TPB), 2,5-dihydroxyterephthalaldehyde (DHTP), and 2,5-dimethoxyterephthalaldehyde (DMTP) served as the platform molecules to directly establish hydroxyl-controlled COFs through Schiff base condensation reactions. Then the novel chiral selectors 6-deoxy-6-[1-(2-aminoethyl)-3-(4-(4-isocyanatobenzyl)phenyl)urea]-β-cyclodextrin (UB-β-CD) were pended into the micropore structures of COFs via covalent bond for further construction the [UB-β-CD]x-TPB-DMTP COFs (x represents the density of chiral sites). The chiral sites density on [UB-β-CD]x-TPB-DMTP COFs was regulated by changing the construction proportion of DHTP to obtain a satisfactory CCOFs and significantly improve the ability of chiral separation. [UB-β-CD]x-TPB-DMTP COFs were coated on the inner wall of a capillary via a covalently bonding strategy. The prepared open tubular capillary exhibited strong and broad enantioselectivity toward a variety of chiral analytes, including sixteen racemic amino acids and six model chiral drugs. By comparing the outcomes of chromatographic separation, we observed that the density of chiral sites in CCOFs was not positively correlated with their enantiomeric separation performance. The mechanism of chiral recognition [UB-β-CD]x-TPB-DMTP COFs were further demonstrated by molecular docking simulation. This study not only introduces a new high-efficiency member of the COFs-based CSPs family but also demonstrates the enantioseparation potential of CCOFs constructed with traditional post-synthetic modification (PSM) strategy by utilizing the inherent characteristics of porous organic frameworks.
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Affiliation(s)
- Mingxuan Ma
- Department of Pharmacy, The Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou, Jiangsu Province, 225000, People's Republic of China
| | - Yanli Zhang
- Department of Pharmacy, The Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou, Jiangsu Province, 225000, People's Republic of China
| | - Fuhong Huang
- Department of Pharmacy, The Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou, Jiangsu Province, 225000, People's Republic of China
| | - Yuan Xu
- Department of Pharmacy, The Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou, Jiangsu Province, 225000, People's Republic of China.
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9
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Yang L, Liu R, Li C, Gu B, Ye J, Chen L, Chu Q. Chiral zeolite beta used as stationary phase for enantioseparation in miniaturized open tubular capillary electrochromatography with amperometric detection. Anal Chim Acta 2024; 1292:342242. [PMID: 38309852 DOI: 10.1016/j.aca.2024.342242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 01/10/2024] [Accepted: 01/11/2024] [Indexed: 02/05/2024]
Abstract
BACKGROUND With the rapid growth of the demand for optically pure compounds in the fields of biology, medicine and stereospecific synthesis, it is of great importance to develop efficient, economical, simple enantioseparation and analysis methods. Open tubular capillary electrochromatography (OT-CEC) has attracted much attention in the field of chiral separation, but its column capacity and the sensitivity of common-used optical detection are relatively low. Zeolite beta nanomaterial is both enantioselective and size-selective, providing suitable chiral microenvironment for chiral recognition, and amperometric detection (AD) avoids the low sensitivity caused by the short optical path in optical detection to some extent. RESULTS Zeolite beta nanomaterials with different particle sizes (25, 50 and 200 nm) were synthesized, and the morphology and structure were characterized by scanning electron microscopy and X-ray diffraction. Then, a novel chiral OT column was prepared by one-step method using zeolite beta nanomaterial as chiral stationary phase, and its separation performance was characterized by miniaturized CEC with AD (mini-CEC-AD) device. Under the optimum conditions, six groups of chiral drugs achieved baseline separation. Norepinephrine enantiomers were used for evaluating the inter-day, intra-day and inter-column reproducibility of the prepared open-tubular column. The relative standard deviations of migration time, peak area, resolution and selectivity factor were within 8.7 %. The limits of detection for norepinephrine enantiomers were 0.18 μg mL-1 (S/N = 3), and the average recoveries were in range of 96.7-105.0 %. This developed method has been successfully applied to the analysis of impurity enantiomer in potassium dichromate (+)-norepinephrine injection sample. SIGNIFICANCE Zeolite beta nanomaterial was used as the stationary phase to prepare chiral OT columns for the first time, and this one-step preparation method is simple and easy. The introduction of zeolite beta enriches the types of chiral stationary phase materials in electrochromatographic columns, and mini-OT-CEC-AD system provides an alternative for fast enantioseparation of chiral compounds.
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Affiliation(s)
- Li Yang
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200241, China
| | - Ru Liu
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200241, China
| | - Chaodan Li
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200241, China
| | - Boning Gu
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200241, China
| | - Jiannong Ye
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200241, China
| | - Li Chen
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China.
| | - Qingcui Chu
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200241, China.
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10
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Bayındır S, Aydoğan C, Denizli A. Preparation of chiral monoliths with new modulation of the monolith surface chemistry for the enantioseparation of chiral drugs by nano-liquid chromatography. J Chromatogr A 2024; 1713:464573. [PMID: 38101302 DOI: 10.1016/j.chroma.2023.464573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Revised: 12/06/2023] [Accepted: 12/08/2023] [Indexed: 12/17/2023]
Abstract
Here, we report the preparation and application of two new chiral monoliths for the enantioseparation of chiral drugs in nano-LC. Using 3‑chloro-2-hydroxypropylmethacrylate (HPMA-Cl, 2) as a precursor monomer, two different chiral monomers namely, Nα-Boc-Lys-HPMA (3A) and Nα-Fmoc-Lys-HPMA (3B) were synthesized and used for the preparation of chiral polymer monoliths. The first monolithic column (referred to as monolith I) was prepared by an in-situ polymerization of Nα-Boc-Lys-HPMA as the chiral monomer and ethylene dimethacrylate while the second monolithic column (referred to as monolith II) was prepared by an in-situ polymerization of Nα-Fmoc-Lys-HPMA as the chiral monomer and ethylene dimethacrylate as the crosslinker. Methanol and 1-propanol were used as the porogenic solvents. The prepared chiral monoliths were investigated for the enantioseparation of chiral drugs, including β-blockers (e.g., atenolol, propranolol, metoprolol) and anti-inflammatory drugs (e.g., ketoprofen, ibuprofen, flurbiprofen, naproxen, etodolac). The enantioseparation could be achieved via the formation of π-π interactions on the aromate-rich and aromate-poor chiral molecules while enantioseparation mechanism of chiral drugs included mostly π-π interactions and hydrogen bonding. Monolith II showed better enantioselectivity than Monolith I and the resolution values up to 2.12 were successfully achieved.
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Affiliation(s)
- Sinan Bayındır
- Department of Chemistry, Bingöl University, Bingöl, Türkiye
| | - Cemil Aydoğan
- Department of Chemistry, Bingöl University, Bingöl, Türkiye; Food Analysis and Research Laboratory, Bingöl University, Bingöl, Türkiye; Department of Food Engineering, Bingöl University, Bingöl, Türkiye.
| | - Adil Denizli
- Department of Chemistry, Hacettepe University, Ankara, Türkiye
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11
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Vaňkátová P, Kalíková K, Kubíčková A. Advantages of polar organic solvent chromatography for enantioseparation of chiral liquid crystals. J Chromatogr A 2023; 1709:464383. [PMID: 37722176 DOI: 10.1016/j.chroma.2023.464383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 09/09/2023] [Accepted: 09/13/2023] [Indexed: 09/20/2023]
Abstract
Three sets of fluorinated chiral liquid crystals were used to explore the polar organic solvent chromatography mode for their enantioseparation. The materials include a set of newly synthesized compounds with chiral center derived from 2-hexanol and two sets of compounds with chiral center derived from 2-/3-octanol. Baseline enantioseparation of all materials was achieved using binary mobile phases without additives. For some of the compounds exceedingly high values of enantioresolution (> 20) and enantioselectivity (> 4) were found. The chromatographic behavior of the sample set was studied on three different polysaccharide-based chiral columns - Chiralpak IA-U, IG-U and IB-U. Comparison of results from Chiralpak IA-U and IB-U shows the effect of amylose vs. cellulose polysaccharide backbone while comparison of Chiralpak IA-U and IG-U reveals the effect of 3,5-dimethylphenylcarbamate vs. 3‑chloro-5-methylphenylcarbamate substituent. The mobile phases tested included whole range of acetonitrile/methanol mixtures to demonstrate that acetonitrile-rich and alcohol-rich mobile phases offer different enantiorecognition mechanisms and can provide complementarity to some extent. The effect of temperature on enantioseparation was investigated on Chiralpak IA-U by constructing van't Hoff plots for selected liquid crystals in pure acetonitrile and pure methanol as mobile phases.
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Affiliation(s)
- Petra Vaňkátová
- Department of Analytical Chemistry, Faculty of Science, Charles University, Prague, Czech Republic; Institute of Physics of the Czech Academy of Sciences, Prague, Czech Republic
| | - Květa Kalíková
- Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University, Prague, Czech Republic.
| | - Anna Kubíčková
- Department of Analytical Chemistry, Faculty of Science, Charles University, Prague, Czech Republic
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12
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Javan M, Seyfinejad B, Rahimpour E, Jouyban-Gharamaleki V, Kaviani R, Shayanfar A, Varshochi M, Khoubnasabjafari M, Jouyban A. Online preconcentration and chiral separation of ofloxacin in exhaled breath condensate by capillary electrophoresis. J Pharm Biomed Anal 2023; 235:115641. [PMID: 37647795 DOI: 10.1016/j.jpba.2023.115641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 08/09/2023] [Accepted: 08/10/2023] [Indexed: 09/01/2023]
Abstract
Breath analysis is an effective method of monitoring systemic or respiratory ailments. A simple chiral capillary electrophoresis method coupled with an online field-amplified sample injection stacking method is presented for ultratrace quantification of the enantiomers of ofloxacin in exhaled breath condensate (EBC). The study is focused on the use of EBC as an easily available biological sample to monitor ofloxacin's enantiomers levels with good patient compliance. The proposed method was validated in accordance with FDA guidelines over the concentration range of 0.004-1.0 µg mL-1 of racemic ofloxacin. Inter- and intra-day precision and accuracy were within the acceptable limit (below 8.50 %). The method was specific for routine analysis of ofloxacin's enantiomers. A small volume of EBC samples from seven patients under ofloxacin therapy was analyzed using the proposed method in which the concentrations of "R" and "S" enantiomers were between 0.0026 and 0.056 µg mL-1.
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Affiliation(s)
- Mahsa Javan
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran; Pharmaceutical Analysis Research Center and Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Behrouz Seyfinejad
- Pharmaceutical Analysis Research Center and Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran; Biotechnology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Elaheh Rahimpour
- Pharmaceutical Analysis Research Center and Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran; Infectious and Tropical Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Vahid Jouyban-Gharamaleki
- Kimia Idea Pardaz Azarbayjan (KIPA) Science Based Company, Tabriz University of Medical Sciences, Tabriz, Iran; Liver and Gastrointestinal Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Raha Kaviani
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran; Pharmaceutical Analysis Research Center and Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Ali Shayanfar
- Pharmaceutical Analysis Research Center and Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mojtaba Varshochi
- Infectious and Tropical Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Maryam Khoubnasabjafari
- Tuberculosis and Lung Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Anesthesiology and Intensive Care, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Abolghasem Jouyban
- Pharmaceutical Analysis Research Center and Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran; Faculty of Pharmacy, Near East University, Mersin 10, PO BOX: 99138, Nicosia, North Cyprus, Turkey.
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13
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Sechi B, Dessì A, Dallocchio R, Tsetskhladze N, Chankvetadze B, Pérez-Baeza M, Cossu S, Jibuti G, Mamane V, Peluso P. Unravelling dispersion forces in liquid-phase enantioseparation. Part I: Impact of ferrocenyl versus phenyl groups. Anal Chim Acta 2023; 1278:341725. [PMID: 37709466 DOI: 10.1016/j.aca.2023.341725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 08/12/2023] [Accepted: 08/14/2023] [Indexed: 09/16/2023]
Abstract
BACKGROUND Highly ordered chiral secondary structures as well as multiple (tunable) recognition sites are the keys to success of polysaccharide carbamate-based chiral selectors in enantioseparation science. Hydrogen bonds (HBs), dipole-dipole, and π-π interactions are classically considered the most frequent noncovalent interactions underlying enantioselective recognition with these chiral selectors. Very recently, halogen, chalcogen and π-hole bonds were also identified as interactions working in polysaccharide carbamate-based selectors to promote enantiomer distinction. On the contrary, the function of dispersion interactions in this field was not explored so far. RESULTS The enantioseparation of chiral ferrocenes featuring chiral axis or chiral plane as stereogenic elements was performed by comparing five polysaccharide carbamate-based chiral columns, with the aim to identify enantioseparation outcomes that could be reasonably determined by dispersion forces, making available a reliable experimental data set for future theoretical studies to confirm the heuristic hypothesis. The effects of mobile phase polarity and temperature on the enantioseparation were considered, and potential recognition sites on analytes and selectors were evaluated by electrostatic potential (V) analysis and molecular dynamics (MD). In this first part, the enantioseparation of 3,3'-dibromo-5,5'-bis-ferrocenylethynyl-4,4'-bipyridine bearing two ferrocenylethynyl units linked to an axially chiral core was performed and compared to that of the analyte featuring the same structural motif with two phenyl groups in place of the ferrocenyl moieties. The results of this study showed the superiority of the ferrocenyl compared to the phenyl group, as a structural element favouring enantiodifferentiation. SIGNIFICANCE AND NOVELTY Even if dispersion (London) forces have been envisaged acting in liquid-phase enantioseparations, focused studies to explore possible contributions of dispersion forces with polysaccharide carbamate-based selectors are practically missing. This study allowed us to collect experimental information that support the involvement of dispersion forces as contributors to liquid-phase enantioseparation, paving the way to a new picture in this field.
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Affiliation(s)
- Barbara Sechi
- Istituto di Chimica Biomolecolare ICB-CNR, Sede Secondaria di Sassari, Traversa La Crucca 3, Regione Baldinca, Li Punti, 07100, Sassari, Italy
| | - Alessandro Dessì
- Istituto di Chimica Biomolecolare ICB-CNR, Sede Secondaria di Sassari, Traversa La Crucca 3, Regione Baldinca, Li Punti, 07100, Sassari, Italy
| | - Roberto Dallocchio
- Istituto di Chimica Biomolecolare ICB-CNR, Sede Secondaria di Sassari, Traversa La Crucca 3, Regione Baldinca, Li Punti, 07100, Sassari, Italy
| | - Nutsa Tsetskhladze
- Institute of Physical and Analytical Chemistry, School of Exact and Natural Sciences, Tbilisi State University, Chavchavadze Ave 3, 0179, Tbilisi, Georgia
| | - Bezhan Chankvetadze
- Institute of Physical and Analytical Chemistry, School of Exact and Natural Sciences, Tbilisi State University, Chavchavadze Ave 3, 0179, Tbilisi, Georgia
| | - Mireia Pérez-Baeza
- Departamento de Química Analítica, Universitat de València, Burjassot, València, Spain
| | - Sergio Cossu
- Dipartimento di Scienze Molecolari e Nanosistemi DSMN, Università Ca' Foscari Venezia, Via Torino 155, I-30172, Mestre Venezia, Italy
| | - Giorgi Jibuti
- Institute of Physical and Analytical Chemistry, School of Exact and Natural Sciences, Tbilisi State University, Chavchavadze Ave 3, 0179, Tbilisi, Georgia
| | - Victor Mamane
- Institut de Chimie de Strasbourg, UMR, CNRS 7177, Equipe LASYROC, 1 Rue Blaise Pascal, 67008, Strasbourg Cedex, France.
| | - Paola Peluso
- Istituto di Chimica Biomolecolare ICB-CNR, Sede Secondaria di Sassari, Traversa La Crucca 3, Regione Baldinca, Li Punti, 07100, Sassari, Italy.
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14
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Zhong J, Liu X, Chen L, Li K, Hu Q, Wu K, Zhou J, Shi Y, Fan H. Simultaneous separation and determination of several chiral antidepressants and their enantiomers in wastewater by online heart-cutting two-dimensional liquid chromatography. Ecotoxicol Environ Saf 2023; 263:115302. [PMID: 37506440 DOI: 10.1016/j.ecoenv.2023.115302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2023] [Revised: 07/06/2023] [Accepted: 07/22/2023] [Indexed: 07/30/2023]
Abstract
A novel method for simultaneous separation and detection of the racemates and the enantiomers of common chiral antidepressants in wastewater matrix was developed by online heart-cutting two-dimensional liquid chromatography (2D-LC) coupled to solid-phase extraction (SPE). Screening of chiral stationary phases (CSPs) and chromatographic conditions was investigated for complete enantioseparation to be compatible with RP-HPLC in 1st D-LC. Using methanol-0.1 % (v/v) ammonia solution as mobile phase, a 2D-LC system was configured by reversed mode with a combination of C18 column and the serially CPS columns as 2D-LC stationary phases respectively. The target analytes could achieve satisfactory transformation between 2D-LCs with transfer rate of 90.57-98.58 %. By means of freeze-drying and SPE, three antidepressants in wastewater were greatly preconcentrated under the optimized conditions, improving the method performance. The racemates and the enantiomers of mirtazapine, bupropion and fluoxetine exhibited good linearity in the range of 0.10-30.00 ng/mL (R2≥0.9986), and LODs and LOQs ranged in 0.0183-0.0549 ng/mL and 0.0661-0.1831 ng/mL, respectively. By this way, the method was successfully applied to simultaneous determination of the racemates and the enantiomers of mirtazapine, bupropion and fluoxetine in wastewater samples. Among them, three samples contained bupropion at level of 0.401-0.822 ng/mL, and mirtazapine at level of 0.328 and fluoxetine at level of 0.381 ng/mL were detected respectively in the other two samples. The enantiomers were at level of 0.140-0.189 ng/mL for mirtazapine, 0.182-0.419 ng/mL for bupropion and 0.179-0.204 ng/mL for fluoxetine, respectively. The proposed method providing an efficient approach to monitoring chiral drugs and their enantiomers in wastewater, facilitating to pollution assessment of chiral drugs in the environment and regional survey of illicit abuse in drug control.
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Affiliation(s)
- Jinjian Zhong
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China; Nano Diagnosis for Health Biotech (Guangzhou) Co., Ltd., Guangzhou 510535, China
| | - Xin Liu
- Anti-Drug Technology Center of Guangdong Province, Guangdong Provincial Key Laboratory of Psychoactive Substances Monitoring and Safety, Guangzhou 510230, China
| | - Linzhou Chen
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China; Nano Diagnosis for Health Biotech (Guangzhou) Co., Ltd., Guangzhou 510535, China
| | - Kan Li
- Anti-Drug Technology Center of Guangdong Province, Guangdong Provincial Key Laboratory of Psychoactive Substances Monitoring and Safety, Guangzhou 510230, China
| | - Qingkun Hu
- Anti-Drug Technology Center of Guangdong Province, Guangdong Provincial Key Laboratory of Psychoactive Substances Monitoring and Safety, Guangzhou 510230, China
| | - Ke Wu
- Nano Diagnosis for Health Biotech (Guangzhou) Co., Ltd., Guangzhou 510535, China
| | - Jidan Zhou
- Nano Diagnosis for Health Biotech (Guangzhou) Co., Ltd., Guangzhou 510535, China
| | - Yuesen Shi
- Anti-Drug Technology Center of Guangdong Province, Guangdong Provincial Key Laboratory of Psychoactive Substances Monitoring and Safety, Guangzhou 510230, China.
| | - Huajun Fan
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China; Nano Diagnosis for Health Biotech (Guangzhou) Co., Ltd., Guangzhou 510535, China.
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15
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Ibrahim AE, El Gohary NA, Aboushady D, Samir L, Karim SEA, Herz M, Salman BI, Al-Harrasi A, Hanafi R, El Deeb S. Recent advances in chiral selectors immobilization and chiral mobile phase additives in liquid chromatographic enantio-separations: A review. J Chromatogr A 2023; 1706:464214. [PMID: 37506464 DOI: 10.1016/j.chroma.2023.464214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 07/10/2023] [Accepted: 07/11/2023] [Indexed: 07/30/2023]
Abstract
For decades now, the separation of chiral enantiomers of drugs has been gaining the interest and attention of researchers. In 1991, the first guidelines for development of chiral drugs were firstly released by the US-FDA. Since then, the development in chromatographic enantioseparation tools has been fast and variable, aiming at creating a suitable environment where the physically and chemically identical enantiomers can be separated. Among those tools, the immobilization of chiral selectors (CS) on different stationary phases and the chiral mobile phase additives (CMPA) which have been progressed and studied extensively. This review article highlights the major advances in immobilization of CS together with their different recognition mechanisms as well as CMPA as a cheaper and successful alternative for chiral stationary phases. Moreover, the role of molecular modeling tool as a pre-step in the choice of CS for evaluating possible interactions with different ligands has been pointed up. Illustrations of reported methods and updates for immobilized CS and CMPA have been included.
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Affiliation(s)
- Adel Ehab Ibrahim
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Port-Said University, Port-Said 42511, Egypt; Natural and Medical Sciences Research Center, University of Nizwa, P.O. Box 33, Birkat Al Mauz, Nizwa 616, Sultanate of Oman
| | - Nesrine Abdelrehim El Gohary
- Pharmaceutical Chemistry Department, Faculty of Pharmacy and Biotechnology, German University in Cairo, Cairo 11835, Egypt
| | - Dina Aboushady
- Pharmaceutical Chemistry Department, Faculty of Pharmacy and Biotechnology, German University in Cairo, Cairo 11835, Egypt
| | - Liza Samir
- Pharmaceutical Chemistry Department, Faculty of Pharmacy and Biotechnology, German University in Cairo, Cairo 11835, Egypt
| | - Shereen Ekram Abdel Karim
- Pharmaceutical Chemistry Department, Faculty of Pharmacy and Biotechnology, German University in Cairo, Cairo 11835, Egypt
| | - Magy Herz
- Pharmaceutical Chemistry Department, Faculty of Pharmacy and Biotechnology, German University in Cairo, Cairo 11835, Egypt
| | - Baher I Salman
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut, 71524, Egypt
| | - Ahmed Al-Harrasi
- Natural and Medical Sciences Research Center, University of Nizwa, P.O. Box 33, Birkat Al Mauz, Nizwa 616, Sultanate of Oman
| | - Rasha Hanafi
- Pharmaceutical Chemistry Department, Faculty of Pharmacy and Biotechnology, German University in Cairo, Cairo 11835, Egypt
| | - Sami El Deeb
- Institute of Medicinal and Pharmaceutical Chemistry, Technische Universität Braunschweig, Braunschweig 38092, Germany; Institute of Pharmacy, Freie Universität Berlin, Königin-Luise-Str. 2+4, 14195 Berlin, Germany.
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16
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Qiu H, Xiang H, Wen M, Chen S, Zhu J, Tong S. Enantioseparation of two antifungal azole drugs by analytical countercurrent chromatography using sulfobutyl ether-β-cyclodextrin as chiral selector. J Chromatogr A 2023; 1705:464185. [PMID: 37429079 DOI: 10.1016/j.chroma.2023.464185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 06/24/2023] [Accepted: 06/27/2023] [Indexed: 07/12/2023]
Abstract
This study reports a successful enantioseparation of two antifungal drugs, Ketoconazole and Voriconazole, using countercurrent chromatography (CCC) with synthesized sulfobutyl ether-β-cyclodextrin (SBE-β-CD) as chiral selector. Two biphasic solvent systems composed of dichloromethane: 0.1 mol L-1 of phosphate buffer solution (pH 3.0) (1:1, v/v) and n-hexane: ethyl acetate: 0.1 mol L-1 phosphate buffer solution (pH 3.0) (1.5:0.5:2, v/v/v) were selected. Influence factors were investigated, including degree of substitution of SBE-β-CD, concentration of SBE-β-CD, equilibrium temperature, and pH of aqueous phase. Under optimized separation conditions, a large enantioseparation factor of α ≥ 3.26 and a high peak resolution Rs= 1.82, was achieved for enantioseparation of Voriconazole by countercurrent chromatography, and purity of two azole stereoisomers collected from CCC separation reached 98.5%, as determined by HPLC. Molecular docking was employed to investigate the formation of inclusion complex.
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Affiliation(s)
- Huiyun Qiu
- College of Pharmaceutical Science, Zhejiang University of Technology, Huzhou, 313200, China
| | - Haiping Xiang
- College of Pharmaceutical Science, Zhejiang University of Technology, Huzhou, 313200, China
| | - Mengyi Wen
- College of Pharmaceutical Science, Zhejiang University of Technology, Huzhou, 313200, China
| | - Songlin Chen
- College of Pharmaceutical Science, Zhejiang University of Technology, Huzhou, 313200, China
| | - Junchao Zhu
- College of Pharmaceutical Science, Zhejiang University of Technology, Huzhou, 313200, China
| | - Shengqiang Tong
- College of Pharmaceutical Science, Zhejiang University of Technology, Huzhou, 313200, China.
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17
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Lo Faro AF, Sprega G, Berardinelli D, Tini A, Poyatos L, Pichini S, Farrè M, Farkas T, Busardò FP, Giunashvili L, Chankvetadze B. Development of enantioselective high-performance liquid chromatography-tandem mass spectrometry method for quantitative determination of methylone and some of its metabolites in oral fluid. J Chromatogr B Analyt Technol Biomed Life Sci 2023; 1228:123824. [PMID: 37487291 DOI: 10.1016/j.jchromb.2023.123824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 07/05/2023] [Accepted: 07/06/2023] [Indexed: 07/26/2023]
Abstract
In the present study an enantioselective high-performance liquid chromatography-tandem mass spectrometry (LC-MS/MS) method was developed for the first time for quantitative determination of the recreational drug of abuse methylone and its major metabolites in oral fluid. The simultaneous chemo- and enantioseparation of methylone and its major metabolites was performed on a polysaccharide-based chiral column based on amylose tris(5-chloro-3-methylphenylcarbamate) as chiral selector (Lux i-Amylose-3) with methanol containing 0.4 % (v/v) aqueous ammonium hydroxide as mobile phase. The time required for enantioselective analysis of methylone and its 2 major metabolites was 15 min. This method was fully validated following the Organization of Scientific Area Committees (OSAC) for Forensic Science guidelines. This method was applied for the enantioselective determination of methylone and its metabolites in oral fluid and enantioselectivity in metabolism and pharmacokinetic of the parent compound and metabolites was observed. While the first enantiomer of methylone was found at higher concentration, both metabolites shown greater concentration for the second enantiomer. The results revealed that MET undergoes an enantioselective biotransformation to its metabolites HMMC and MDC, with S-(-)-MET more rapidly metabolized and eliminated from the body.
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Affiliation(s)
- Alfredo Fabrizio Lo Faro
- Department of Excellence-Biomedical Sciences and Public Health, Università Politecnica delle Marche, 60121 Ancona, Italy
| | - Giorgia Sprega
- Department of Excellence-Biomedical Sciences and Public Health, Università Politecnica delle Marche, 60121 Ancona, Italy
| | - Diletta Berardinelli
- Department of Excellence-Biomedical Sciences and Public Health, Università Politecnica delle Marche, 60121 Ancona, Italy
| | - Anastasio Tini
- Department of Excellence-Biomedical Sciences and Public Health, Università Politecnica delle Marche, 60121 Ancona, Italy
| | - Lourdes Poyatos
- Servei de Farmacologia Clínica, Hospital Universitari Germans Trias i Pujol (HUGTiP, IGTP)- Universitat Autònoma de Barcelona, Unitat Docent HUGTiP, Badalona, Spain
| | - Simona Pichini
- National Centre on Addiction and Doping, Istituto Superiore di Sanità, Rome, Italy
| | - Magì Farrè
- Servei de Farmacologia Clínica, Hospital Universitari Germans Trias i Pujol (HUGTiP, IGTP)- Universitat Autònoma de Barcelona, Unitat Docent HUGTiP, Badalona, Spain
| | - Tivadar Farkas
- Phenomenex Inc., 411 Madrid Ave., Torrance, 90501 CA, USA
| | - Francesco Paolo Busardò
- Department of Excellence-Biomedical Sciences and Public Health, Università Politecnica delle Marche, 60121 Ancona, Italy.
| | - Lasha Giunashvili
- Tbilisi State University, Institute of Physical and Analytical Chemistry, School of Exact and Natural Sciences, 0179 Tbilisi, Georgia
| | - Bezhan Chankvetadze
- Tbilisi State University, Institute of Physical and Analytical Chemistry, School of Exact and Natural Sciences, 0179 Tbilisi, Georgia
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18
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Di S, Zhao H, Liu Z, Lu Y, Xu H, Qi P, Wang Z, Wang X. Stereoselective analysis of chiral succinate dehydrogenase inhibitors (SDHIs) in foods of plant origin and animal origin by supercritical fluid chromatography-tandem mass spectrometry (SFC-MS/MS). Food Chem 2023; 411:135452. [PMID: 36682161 DOI: 10.1016/j.foodchem.2023.135452] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 12/22/2022] [Accepted: 01/07/2023] [Indexed: 01/11/2023]
Abstract
The stereoisomers of chiral SDHIs were prepared using Autoprep HPLC and chiral columns. The method of combining theoretical calculation with experimental determination was used to confirm the absolute configuration of stereoisomer. SFC-MS/MS and four kinds of chiral columns were used to separate the eight chiral SDHIs, and they could be separated simultaneously using OD-3 column in 6.5 min. The integrated QuEChERS strategy was used to analyse the chiral SDHIs in foods of plant and animal origin, and the average recoveries ranged from 71 % to 119 % with RSD ≤ 18 %, and the LOQ was 1 ng/g. There were 99.2 % and 63.6 % matrix effects were in the range of 0.8-1.2 in foods of plant and animal origin, respectively, showing weak matrix effects. The study provided methods for monitoring chiral SDHIs stereoisomers residues, which were crucial for stereoselective evaluations and improving risk assessments.
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19
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Liu C, Guo P, Lu YR, Zhu YL, Ran XY, Wang BJ, Zhang JH, Xie SM, Yuan LM. In situ growth preparation of a new chiral covalent triazine framework core-shell microspheres used for HPLC enantioseparation. Mikrochim Acta 2023; 190:238. [PMID: 37222823 DOI: 10.1007/s00604-023-05806-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Accepted: 04/17/2023] [Indexed: 05/25/2023]
Abstract
The manufacturing of chiral covalent triazine framework core-shell microspheres CC-MP CCTF@SiO2 composite is reported as stationary phase for HPLC enantioseparation. The CC-MP CCTF@SiO2 core-shell microspheres were prepared by immobilizing chiral COF CC-MP CCTF constructed using cyanuric chloride and (S)-2-methylpiperazine on the surface of activated SiO2 through an in-situ growth approach. Various racemates as analytes were separated on the CC-MP CCTF@SiO2-packed column. The experimental results indicate that 19 pairs of enantiomers were well separated on the CC-MP CCTF@SiO2-packed column, including alcohols, phenols, amines, ketones, and organic acids. Among them, there are 17 pairs of enantiomers that can achieve baseline separation with good peak shapes. Their resolution values on this chiral column are between 0.4 and 5.61. The influences of analyte mass, column temperature, and composition of the mobile phase on the resolution of enantiomers were studied. In addition, the chiral resolution ability of CC-MP CCTF@SiO2-packed column was compared with the commercial chiral chromatographic columns (Chiralpak AD-H and Chiralcel OD-H columns) and some CCOF@SiO2 chiral columns (β-CD-COF@SiO2, CTpBD@SiO2, and MDI-β-CD-modified COF@SiO2). The CC-MP CCTF@SiO2-packed column exhibited some unique advantages and can complement these chiral columns in chiral separations. The research results show that the CC-MP CCTF@SiO2 chiral column offered high column efficiency (e.g., 17680 plates m-1 for ethyl mandelate), low column backpressure (5-9 bar), high enantioselectivity, and excellent chiral resolution ability for HPLC enantioseparation with good stability and reproducibility. The relative standard deviations (RSD) (n = 5) of the retention time, and peak areas by repeated separation of ethyl mandelate are 0.23% and 0.67%, respectively. It demonstrates that the CC-MP CCTF@SiO2 core-shell microsphere composite has great potential in enantiomeric separation by HPLC.
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Affiliation(s)
- Cheng Liu
- Department of Chemistry, Yunnan Normal University, Kunming, 650500, People's Republic of China
| | - Ping Guo
- Department of Chemistry, Yunnan Normal University, Kunming, 650500, People's Republic of China
| | - Yan-Rui Lu
- Department of Chemistry, Yunnan Normal University, Kunming, 650500, People's Republic of China
| | - Yu-Lan Zhu
- Department of Chemistry, Yunnan Normal University, Kunming, 650500, People's Republic of China
| | - Xiao-Yan Ran
- Department of Chemistry, Yunnan Normal University, Kunming, 650500, People's Republic of China
| | - Bang-Jin Wang
- Department of Chemistry, Yunnan Normal University, Kunming, 650500, People's Republic of China
| | - Jun-Hui Zhang
- Department of Chemistry, Yunnan Normal University, Kunming, 650500, People's Republic of China.
| | - Sheng-Ming Xie
- Department of Chemistry, Yunnan Normal University, Kunming, 650500, People's Republic of China.
| | - Li-Ming Yuan
- Department of Chemistry, Yunnan Normal University, Kunming, 650500, People's Republic of China
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20
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Ding T, Liu L, Liu Y, Jiang S, Guo W, Liu R, He L. Chiral separation of racemic closantel and ultratrace detection of its enantiomers in bacteria by enhanced liquid chromatography-tandem mass spectrometry combined with postcolumn infusion of ammonia. J Chromatogr A 2023; 1698:464001. [PMID: 37087856 DOI: 10.1016/j.chroma.2023.464001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 03/30/2023] [Accepted: 04/16/2023] [Indexed: 04/25/2023]
Abstract
Reliable analysis of ultratrace antibiotics in bacterial cells may become a new means to elucidate the antibacterial mechanism, drug resistance and environmental fate. In this work, an ultrahigh-sensitive, accurate and enhanced liquid chromatography-tandem mass spectrometric method was first developed for chiral separation and detection of racemic closantel, as an antibacterial adjuvant. Optimizing acetonitrile-water-formic acid system that is compatible with mass spectrometry as a mobile phase, the baseline separation of two enantiomers was achieved by using EnantioPak® Y1-R chiral column, and the resolution of the two analytes was more than 1.95. Further adopt the strategy of postcolumn infusion of ammonia, the mobile phase pH was reversed from acidic condition suitable for the optimal chromatographic separation of R- and S-closantel to alkaline, so that closantel could realize efficient electrospray ionization under the preferred negative ion mode. The bacterial cells were subjected to be frozen-cracked, and the analytes were extracted with acetonitrile after clipping the pointed bottom of the Eppendorf tube into a new tube. The method was linear over concentration ranges of 0.5-50 pg/mL (r2≥0.99) for R- and S-closantel. The detection limits of target analytes were all 0.15 pg/mL in bacterial cells. The average recoveries of two enantiomers ranged from 81.2% to 107.8% with relative standard deviations below 15%. The method proposed might be important support for the deep research of the stereoselectivity of biological activity, toxicity and metabolism of closantel enantiomers.
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Affiliation(s)
- Tongyan Ding
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, South China Agricultural University, Guangzhou, 510642, China; National Reference Laboratory of Veterinary Drug Residues, College of Veterinary Medicine, South China Agricultural University (SCAU), Guangzhou, 510642, China
| | - Longyun Liu
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, South China Agricultural University, Guangzhou, 510642, China
| | - Yilei Liu
- National Reference Laboratory of Veterinary Drug Residues, College of Veterinary Medicine, South China Agricultural University (SCAU), Guangzhou, 510642, China
| | - Shuanghui Jiang
- National Reference Laboratory of Veterinary Drug Residues, College of Veterinary Medicine, South China Agricultural University (SCAU), Guangzhou, 510642, China
| | - Wenying Guo
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, South China Agricultural University, Guangzhou, 510642, China
| | - Rong Liu
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, South China Agricultural University, Guangzhou, 510642, China
| | - Limin He
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, South China Agricultural University, Guangzhou, 510642, China; National Reference Laboratory of Veterinary Drug Residues, College of Veterinary Medicine, South China Agricultural University (SCAU), Guangzhou, 510642, China.
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21
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Qi S, Niu X, Zhang H, Chen H, Chen X. Preparation of D-His-ZIF-90 coated capillary column and its application in open-tube capillary electrochromatography enantioseparation. J Sep Sci 2023:e2200836. [PMID: 37052362 DOI: 10.1002/jssc.202200836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 04/03/2023] [Accepted: 04/05/2023] [Indexed: 04/14/2023]
Abstract
Metal organic framework materials are a class of novel crystalline porous materials with regular pore structures formed by covalent bonding between metal centers and organic functional groups. Metal organic framework materials have attracted great interest in analytical chemistry due to their unique properties such as good stability and permanent porosity. In this work, D-histidine was used to carry out chiral modification of zeolitic imidazolate framework-90 under mild conditions, and the D-histidine modified zeolitic imidazolate framework-90 coated capillary column was prepared. This chiral capillary column was used to separate epinephrine, norepinephrine, terbutaline and tryptophan enantiomers. Under optimum conditions, baseline separations were achieved. The intra-day, inter-day and inter-column relative standard deviations (n = 3) of the four pairs of enantiomeric migration times were 0.15-0.56%, 0.74-2.40%, and 1.93-3.18%, respectively. Moreover, the D-histidine modified zeolitic imidazolate framework-90 coated capillary could be reused for at least 150 runs without significant changes in the separation efficiency and migration time. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Shengda Qi
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, Lanzhou University, Lanzhou, China
| | - Xiao Niu
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, Lanzhou University, Lanzhou, China
| | - Huige Zhang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, Lanzhou University, Lanzhou, China
| | - Hongli Chen
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, Lanzhou University, Lanzhou, China
| | - Xingguo Chen
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, Lanzhou University, Lanzhou, China
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22
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Russo F, Tolomeo F, Angela Vandelli M, Biagini G, Laganà A, Laura Capriotti A, Cerrato A, Carbone L, Perrone E, Cavazzini A, Maiorano V, Gigli G, Cannazza G, Citti C. Enantioseparation of chiral phytocannabinoids in medicinal cannabis. J Chromatogr B Analyt Technol Biomed Life Sci 2023; 1221:123682. [PMID: 36965450 DOI: 10.1016/j.jchromb.2023.123682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 03/13/2023] [Accepted: 03/15/2023] [Indexed: 03/27/2023]
Abstract
The evaluation of the chiral composition of phytocannabinoids in the cannabis plant is particularly important as the pharmacological effects of the (+) and (-) enantiomers of these compounds are completely different. Chromatographic attempts to assess the presence of the minor (+) enantiomers of the main phytocannabinoids, cannabidiolic acid (CBDA) and trans-Δ9-tetrahydrocannabinolic acid (trans-Δ9-THCA), were carried out on heated plant extracts for the determination of the corresponding decarboxylated species, cannabidiol (CBD) and trans-Δ9-tetrahydrocannabinol (trans-Δ9-THC), respectively. This process produces an altered phytocannabinoid composition with several new and unknown decomposition products. The present work reports for the first time the stereoselective synthesis of the pure (+) enantiomers of the main phytocannabinoids, trans-CBDA, trans-Δ9-THCA, trans-CBD and trans-Δ9-THC, and the development and optimization of an achiral-chiral liquid chromatography method coupled to UV and high-resolution mass spectrometry detection in reversed phase conditions (RP-HPLC-UV-HRMS) for the isolation of the single compounds and evaluation of their actual enantiomeric composition in plant. The isolation of the peaks with the achiral stationary phase ensured the absence of interferences that could potentially co-elute with the analytes of interest in the chiral analysis. The method applied to the Italian medicinal cannabis variety FM2 revealed no trace of the (+) enantiomers for all phytocannabinoids under investigation before and after decarboxylation, thus suggesting that the extraction procedure does not lead to an inversion of configuration.
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Affiliation(s)
- Fabiana Russo
- Clinical and Experimental Medicine PhD Program, University of Modena and Reggio Emilia, 41125 - Modena, Italy; Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, 41125 - Modena, Italy
| | - Francesco Tolomeo
- Institute of Nanotechnology - CNR NANOTEC, Campus Ecotekne, Via Monteroni, 73100 - Lecce, Italy
| | - Maria Angela Vandelli
- Department of Life Sciences, University of Modena and Reggio Emilia, Via Campi 103, 41125 - Modena, Italy
| | - Giuseppe Biagini
- Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, 41125 - Modena, Italy
| | - Aldo Laganà
- Department of Chemistry, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 - Rome, Italy
| | - Anna Laura Capriotti
- Department of Chemistry, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 - Rome, Italy
| | - Andrea Cerrato
- Department of Chemistry, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 - Rome, Italy
| | - Luigi Carbone
- Institute of Nanotechnology - CNR NANOTEC, Campus Ecotekne, Via Monteroni, 73100 - Lecce, Italy
| | - Elisabetta Perrone
- Institute of Nanotechnology - CNR NANOTEC, Campus Ecotekne, Via Monteroni, 73100 - Lecce, Italy
| | - Alberto Cavazzini
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, Via L. Borsari 46, 44121 - Ferrara, Italy
| | - Vincenzo Maiorano
- Institute of Nanotechnology - CNR NANOTEC, Campus Ecotekne, Via Monteroni, 73100 - Lecce, Italy
| | - Giuseppe Gigli
- Institute of Nanotechnology - CNR NANOTEC, Campus Ecotekne, Via Monteroni, 73100 - Lecce, Italy
| | - Giuseppe Cannazza
- Institute of Nanotechnology - CNR NANOTEC, Campus Ecotekne, Via Monteroni, 73100 - Lecce, Italy; Department of Life Sciences, University of Modena and Reggio Emilia, Via Campi 103, 41125 - Modena, Italy.
| | - Cinzia Citti
- Institute of Nanotechnology - CNR NANOTEC, Campus Ecotekne, Via Monteroni, 73100 - Lecce, Italy; Department of Life Sciences, University of Modena and Reggio Emilia, Via Campi 103, 41125 - Modena, Italy.
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23
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Zheng X, Wu G, Yang Z, Guo N, Niu B, Chen Q, Sun X. Cyclodextrin-NH-MIL-53 open tubular stationary phase for capillary electrochromatography enantioseparation. J Sep Sci 2023; 46:e2200969. [PMID: 36932879 DOI: 10.1002/jssc.202200969] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 03/09/2023] [Accepted: 03/15/2023] [Indexed: 03/19/2023]
Abstract
A novel chiral group functionalized metal-organic framework, Cyclodextrin-NH-MIL-53, was synthesized and modified on the inner wall of a capillary column via a post-synthetic process. The prepared chiral metal-organic framework was utilized as a chiral capillary stationary phase and used in an open-tubular capillary electrochromatography method to enantioseparate several racemic amino acids. Excellent enantioseparation of five pairs of enantiomers was obtained in this chiral separation system (Resolutions of D/L-Alanine = 16.844, D/L-Cysteine = 3.617, D/L-Histidine = 9.513, D/L-Phenylalanine = 8.133, and D/L-Tryptophan = 2.778). The prepared Cyclodextrin-NH-MIL-53 and the Cyclodextrin-NH-MIL-53 based capillary columns were characterized by scanning electron microscopy, X-ray diffraction, Fourier transform infrared spectroscopy, and circular dichroism. The chiral capillary electrochromatography conditions, such as separation conditions, amount of Cyclodextrin-NH-MIL-53, and electroosmotic flow, were optimized. This research is estimated to present a novel insight and method for the design and use of metal-organic framework-based capillaries for enantioseparation. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Xiangtai Zheng
- Shanghai Engineering Research Center of Organ Repair, School of Medicine, Shanghai University, Shanghai, P. R. China
| | - Guihua Wu
- Geriatric department, The Sixth People's Hospital of Nantong, Nantong, Jiangsu Province, P. R. China
| | - Zhihao Yang
- School of Life Science, Shanghai University, Shanghai, P. R. China
| | - Na Guo
- School of Life Science, Shanghai University, Shanghai, P. R. China
| | - Bing Niu
- School of Life Science, Shanghai University, Shanghai, P. R. China
| | - Qin Chen
- School of Life Science, Shanghai University, Shanghai, P. R. China
| | - Xiaodong Sun
- Shanghai Engineering Research Center of Organ Repair, School of Medicine, Shanghai University, Shanghai, P. R. China
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24
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Saleh OA, Badawey AM, Aboul-Enein HY, Fouad MA. Enantioseparation, quantification, molecular docking and molecular dynamics study of five β-adrenergic blockers on Lux-Cellulose-2 column. BMC Chem 2023; 17:22. [PMID: 36927568 PMCID: PMC10018884 DOI: 10.1186/s13065-023-00925-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Accepted: 02/25/2023] [Indexed: 03/18/2023] Open
Abstract
Enantioseparation of five β-adrenergic blockers was studied using two mobile phases on a cellulose tris(3-chloro-4-methylphenylcarbamate) (Lux-Cellulose-2) chiral column in normal phase mode. The first mobile phase composed of n-hexane: ethanol: diethylamine 60: 40: 0.1 by volume has successfully resolved the chromatographic peaks of three pairs of β-adrenergic blockers namely, bisoprolol, carvedilol and atenolol. A mixture of n-hexane: ethanol: diethyl amine 75: 25: 0.1 by volume was used as the second mobile phase to separate the four pairs of enantiomers, metoprolol, carvedilol, nebivolol and atenolol with high resolution values. The mobile phases were pumped at a flow rate 1 mL/min with column temperature 25 °C using a UV detector at 230 nm. Molecular docking simulations of the five pairs of enantiomers was carried out in the cavities of the chiral stationary phase to gain a better understanding of the interaction between analyte enantiomers and chiral stationary phase and to better understand the mechanism of chiral recognition. According to the results, hydrogen bond interactions and π-π- interactions were the main types of interaction involved in the chiral recognition. Molecular dynamics simulation was performed to investigate the solvent effect on the interaction of the five pair of enantiomers in the chiral stationary phase cavity under dynamic conditions.
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Affiliation(s)
- Ola Ahmed Saleh
- Medicinal and Pharmaceutical Chemistry Department, Pharmaceutical and Drug Industries Research Division, National Research Centre (ID: 60014618), P.O. Box 12622, Giza, Egypt.
| | - Amr Mohamed Badawey
- Analytical Chemistry Department, Faculty of Pharmacy, Cairo University, Kasr El-Aini St., Cairo, 11562, Egypt
| | - Hassan Y Aboul-Enein
- Medicinal and Pharmaceutical Chemistry Department, Pharmaceutical and Drug Industries Research Division, National Research Centre (ID: 60014618), P.O. Box 12622, Giza, Egypt.
| | - Marwa Ahmed Fouad
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Cairo University, Kasr El-Aini St., Cairo, 11562, Egypt.,Pharmaceutical Chemistry Department, School of Pharmacy, NewGiza University, NewGiza, Km 22 Cairo-Alexandria Desert Road, Cairo, Egypt
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25
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Strege MA, Oman TJ, Risley DS, Muehlbauer LK, Jalan A, Jerry Lian Z. Enantiomeric purity analysis of synthetic peptide therapeutics by direct chiral high-performance liquid chromatography-electrospray ionization tandem mass spectrometry. J Chromatogr B Analyt Technol Biomed Life Sci 2023; 1219:123638. [PMID: 36857849 DOI: 10.1016/j.jchromb.2023.123638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 02/01/2023] [Accepted: 02/13/2023] [Indexed: 02/19/2023]
Abstract
The determination of chiral purity is critical to the evaluation of the quality of peptide pharmaceutical products. For synthetic peptides, the undesirable d-isomers can be introduced as impurities in amino acid starting materials and can also be formed during peptide synthesis and in some cases during product shelf life. A chiral high-performance liquid chromatography-electrospray ionization tandem mass spectrometry (HPLC-ESI-MS/MS) method is described that facilitates rapid and accurate determination of amino acid chiral purity of a peptide. The peptide is hydrolyzed in deuterated acid to facilitate correction for any racemization occurring during this step of sample preparation, and the amino acids are subsequently separated by chiral chromatography interfaced with ESI-MS/MS for quantitation. The amino acid samples are analyzed directly following hydrolysis using high-low chromatography and extraction of selected ion response, providing efficiency and simplicity by avoiding the derivatization steps and multiple external standards required by traditional methodologies. GMP method validation feasibility is described for all nineteen chiral proteogenic amino acids. The practical application of the chiral HPLC-ESI-MS/MS method was demonstrated through the recovery of d-amino acid substitutions at each residue of an octapeptide across the 0.1-1.0 % range of interest. The method was applied to the analysis of four model peptides, each consisting of 8-14 amino acid residues, and the results were comparable to those provided by traditional testing methods.
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Affiliation(s)
- Mark A Strege
- Lilly Research Laboratories, A Division of Eli Lilly and Company, Lilly Corporate Center, Indianapolis, IN 46285 USA.
| | - Trent J Oman
- Lilly Research Laboratories, A Division of Eli Lilly and Company, Lilly Corporate Center, Indianapolis, IN 46285 USA
| | - Donald S Risley
- Lilly Research Laboratories, A Division of Eli Lilly and Company, Lilly Corporate Center, Indianapolis, IN 46285 USA
| | - Laura K Muehlbauer
- Lilly Research Laboratories, A Division of Eli Lilly and Company, Lilly Corporate Center, Indianapolis, IN 46285 USA
| | - Ankur Jalan
- Lilly Research Laboratories, A Division of Eli Lilly and Company, Lilly Corporate Center, Indianapolis, IN 46285 USA
| | - Zhirui Jerry Lian
- Lilly Research Laboratories, A Division of Eli Lilly and Company, Lilly Corporate Center, Indianapolis, IN 46285 USA
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26
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Dong Q, Guo X, Qu X, Bai S, You X, Cui H, Qin S, Gao L. Chiral covalent organic framework-based open tubular capillary electrochromatography column for enantioseparation of selected amino acids and pesticides. Talanta 2023; 258:124415. [PMID: 36907161 DOI: 10.1016/j.talanta.2023.124415] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 03/01/2023] [Accepted: 03/02/2023] [Indexed: 03/09/2023]
Abstract
A novel chiral covalent organic framework (CCOF) was synthesized with an imine covalent organic framework TpBD (synthesized via Schiff-base reaction between phloroglucinol (Tp) and benzidine (BD)) modified using (1S)-(+)-10-camphorsulfonyl chloride as chiral ligand by chemical bonding method for the first time, and was characterized by X-ray diffraction, Fourier-transform infrared spectra, X-ray photoelectron spectroscopy, nitrogen adsorption/desorption, thermogravimetry analysis, and zeta-potential. The results revealed that the CCOF had good crystallinity, high specific surface area and good thermal stability. Then, the CCOF was employed as stationary phase in open-tubular capillary electrochromatography (OT-CEC) column (the CCOF-bonded OT-CEC column) for enantioseparation of 21 single chiral compounds (12 natural amino acids including acidic, neutral and basic, 9 pesticides including herbicides, insecticides and fungicides) and simultaneous enantioseparation of mixture amino acids and pesticides with similar structures or properties. Under the optimized CEC conditions, all the analytes reached the baseline separation with high resolutions of 1.67-25.93 and selectivity factors of 1.06-3.49 in 8 min. Finally, the reproducibility and stability of the CCOF-bonded OT-CEC column were measured. Relative standard deviations (RSDs) of retention time and separation efficiency were 0.58-4.57% and 1.85-4.98%, and not obviously changed after 150 runs. These results demonstrate that COFs-modified OT-CEC explore a promising method to separate chiral compounds.
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Affiliation(s)
- Qing Dong
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar, 161006, China
| | - Xinyu Guo
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar, 161006, China
| | - Xinran Qu
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar, 161006, China
| | - Siqi Bai
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar, 161006, China
| | - Xingyu You
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar, 161006, China
| | - Hongshou Cui
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar, 161006, China
| | - Shili Qin
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar, 161006, China
| | - Lidi Gao
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar, 161006, China.
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27
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An X, Pan X, Li R, Dong F, Zhu W, Xu J, Wu X, Zheng Y. Comprehensive evaluation of novel fungicide benzovindiflupyr at the enantiomeric level: Bioactivity, toxicity, mechanism, and dissipation behavior. Sci Total Environ 2023; 860:160535. [PMID: 36574547 DOI: 10.1016/j.scitotenv.2022.160535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Revised: 11/22/2022] [Accepted: 11/23/2022] [Indexed: 06/17/2023]
Abstract
Racemates in the environment can lead to inaccurate risk assessment. To obtain the enantiomeric level information of benzovindiflupyr for accurate risk assessment, the absolute configuration of benzovindiflupyr was first confirmed, and the enantioseparation method was developed by supercritical fluid chromatography tandem mass spectrometry. The enantioselectivity for bioactivity and toxicity was investigated, and the mechanism was explored by molecular docking and detecting succinate dehydrogenase (SDH) activity and content of succinate acid. 1S,4R-(-)-benzovindiflupyr was identified as the most active against the six targeted phytopathogens, which showed higher 1.7-54.5 times than 1R,4S-(+)-benzovindiflupyr. Additionally, 1S,4R-(-)-benzovindiflupyr (LD50: 21.54 μg L-1) was 103.7 times more toxic than 1R,4S-(+)-benzovindiflupyr against Daphnia magna. 1S,4R-(-)-benzovindiflupyr had a stronger affinity for SDH and significantly inhibited SDH activity, resulting in an increase in succinate acid in the tricarboxylic acid cycle, while its downstream products, fumaric and L-malic acid were significantly reduced. Moreover, the dissipation behavior of benzovindiflupyr on three vegetables was evaluated. 1S,4R-(-)-benzovindiflupyr was preferentially degraded in tomato, but opposite in leaves. The enantioselectivity in pepper and cucumber leaves was the same as in tomato, while there was no enantioselectivity in pepper and cucumber. The study provides a basis for accurate risk assessment and the development of high-effective and low-risk fungicides.
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Affiliation(s)
- Xiaokang An
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China; College of Plant Health and Medicine, Qingdao Agricultural University, Qingdao 266109, China; Department of Applied Chemistry, China Agricultural University, Beijing 100193, China
| | - Xinglu Pan
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Runan Li
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Fengshou Dong
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
| | - Wentao Zhu
- Department of Applied Chemistry, China Agricultural University, Beijing 100193, China
| | - Jun Xu
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Xiaohu Wu
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Yongquan Zheng
- College of Plant Health and Medicine, Qingdao Agricultural University, Qingdao 266109, China
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Zhang C, Ma X. Use of chiral ionic liquid as additive for synergistic enantioseparation of basic drugs in capillary electrophoresis. J Pharm Biomed Anal 2023; 225:115204. [PMID: 36566722 DOI: 10.1016/j.jpba.2022.115204] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 12/02/2022] [Accepted: 12/15/2022] [Indexed: 12/24/2022]
Abstract
This work presents a synergistic system for enantioseparation in capillary electrophoresis (CE) with a chiral ionic liquid (CIL) based on D-10-camphorsulfonic acid as additive and carboxymethyl-β-cyclodextrin (CM-β-CD) as the chiral selector. The proposed method showed excellent enantioseparation performance towards sixteen chiral drugs. In contrast to the single CM-β-CD system, the notably improved resolution (Rs) and selectivity factor (α) of model drugs were observed in synergistic system. Several key parameters such as CIL concentration, CM-β-CD concentration, buffer pH and separation voltage were investigated, after which Statistical Product and Service Solutions (SPSS) was used to prove the potential synergistic effect. The nuclear magnetic resonance (NMR) results further demonstrated the function of the CIL and the superiority of synergistic system. Finally, chiral impurity determination of chlorpheniramine maleate sample was successfully carried out using the established method.
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Affiliation(s)
- Chengchen Zhang
- Department of Geriatrics, The Second Affiliated Hospital of Nantong University and First People's Hospital of Nantong City, Nantong 226001, PR China.
| | - Xiaofei Ma
- Department of Pharmacy, Affiliated Hospital of Nantong University, Nantong 226001, PR China
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Sun J, Dai J, Zhou Y, Shang H. Enantioseparation and quantitative analysis of three alkaloids in Rhizoma Corydalis by chiral LC-MS/MS. J Pharm Biomed Anal 2022; 220:115008. [PMID: 36007308 DOI: 10.1016/j.jpba.2022.115008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2022] [Revised: 08/15/2022] [Accepted: 08/16/2022] [Indexed: 01/05/2023]
Abstract
A chiral liquid chromatography-mass spectrometry (LC-MS/MS) approach was developed and verified for the first time in order to quantify the three alkaloids, namely tetrahydropalmatine (THP), tetrahydroberberine (THB) and tetrahydrocoptisine (THC) in Rhizoma Corydalis. Solid-phase extraction was used to prepare sample solution. Enantiomeric separation was obtained on a Chiralpak IC column using acetonitrile-water-ammonia (90:10: 0.1, v/v/v) as mobile phase. The detection was carried out in multiple reaction monitoring (MRM) mode with positive electrospray ionization source. Transitions of m/z 356.0→192.0, m/z 340.0→176.0 and m/z 324.1→176.0 were monitored for THP, THB and THC respectively. All calibration curves showed good linearity (r2 ≥0.9994) within the test ranges. The lower limit of quantification (LLOQ) was 1.0 ng mL-1 and 1.5 ng mL-1 for (+)- and (-)-THP, 1.0 ng mL-1 and 3.0 ng mL-1 for (+)- and (-)-THB, 1.5 ng mL-1and 1.8 ng mL-1 for (+)- and (-)-THC, respectively. The precision, repeatability, and stability tests all meet the requirements. The average recoveries of the analytes ranged from 98.9 % to 101.3 %. Ultimately, the established method was successfully applied to the quantitative analysis of these alkaloid enantiomers extracted from Rhizoma Corydalis of different habitats.
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30
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Pepino R, Leyva V, Garcia AD, Bocková J, Meinert C. Resolution, quantification, and reliable determination of enantiomeric excess of proteinogenic and non-proteinogenic amino acids by comprehensive two-dimensional gas chromatography. J Sep Sci 2022; 45:4416-4426. [PMID: 36214089 PMCID: PMC10092029 DOI: 10.1002/jssc.202200606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 09/14/2022] [Accepted: 09/30/2022] [Indexed: 11/06/2022]
Abstract
This work proposes a comprehensive two-dimensional gas chromatography (GC×GC) method for the resolution and quantification of 27 amino acids, including 17 enantiomeric pairs, as stable N-trifluoroacetyl-O-methyl ester derivatives. The derivatization approach in combination with enantioselective GC×GC has proven to be highly responsive with a method detection limit of 1-7 pg even for sterically hindered amino acids such as α,α-dialkylated and N-alkylated amino acids. Accurate determination of the enantiomeric excess was achieved with errors in the range of ± 0.5-2.5% (1σ) at concentrations ≥ 10-6 M. A thorough study of the mass spectra of the amino acid derivatives allowed the fragmentation pathways to be distinguished, enabling chromatographic peaks to be unambiguously assigned. The proposed method is particularly suited for applications that require the precise determination of enantiomeric excesses such as those concerning the role of d-amino acid enantiomers in humans, animals, and the environment, as well as for analyses of extraterrestrial samples aimed at understanding the selection of amino acids in stereochemical l-configuration. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Raphaël Pepino
- Institut de Chimie de Nice, CNRS UMR 7272, Université Côte d'Azur, Nice, 06108, France
| | - Vanessa Leyva
- Institut de Chimie de Nice, CNRS UMR 7272, Université Côte d'Azur, Nice, 06108, France
| | - Adrien D Garcia
- Institut de Chimie de Nice, CNRS UMR 7272, Université Côte d'Azur, Nice, 06108, France
| | - Jana Bocková
- Institut de Chimie de Nice, CNRS UMR 7272, Université Côte d'Azur, Nice, 06108, France
| | - Cornelia Meinert
- Institut de Chimie de Nice, CNRS UMR 7272, Université Côte d'Azur, Nice, 06108, France
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31
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Di S, Liu Z, Zhao H, Li Y, Qi P, Wang Z, Xu H, Jin Y, Wang X. Chiral perspective evaluations: Enantioselective hydrolysis of 6PPD and 6PPD-quinone in water and enantioselective toxicity to Gobiocypris rarus and Oncorhynchus mykiss. Environ Int 2022; 166:107374. [PMID: 35780684 DOI: 10.1016/j.envint.2022.107374] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Revised: 06/06/2022] [Accepted: 06/22/2022] [Indexed: 05/26/2023]
Abstract
As a ubiquitous tire antidegradant, N-(1,3-dimethylbutyl)-N'-phenyl-p-phenylenediamine (6PPD) is persistently released into the environment. It is highly toxic to aquatic organisms, and its transformation product 6PPD-quinone (6PPD-Q), is "very highly toxic" to Oncorhynchus kisutch at a median lethal concentration (LC50) of < 0.1 ng/mL. Notably, 6PPD and 6PPD-Q are chiral compounds. Here, enantioselective evaluations, including hydrolysis and acute toxicity were conducted after preparing the enantiomer, confirming the enantiomer absolute configuration and establishing enantioseparation methods. In the 6PPD hydrolysis experiments, the products 6PPD-Q, phenol, 4-[(1,3-dimethylbutyl)amino]- (4-DBAP) and 4-hydroxydiphenylamine (4-HDPA) were detected. In different water solutions, the hydrolysis of 4-DBAP and 4-HDPA was very fast (0.87-107 h), while the 6PPD-Q hydrolysis half-lives (12.8-16.3 d) were significantly longer than 6PPD (4.83-64.1 h). At the enantiomeric level, no enantioselective hydrolysis and conversion occurred. R-6PPD generated R-6PPD-Q, and S-6PPD generated S-6PPD-Q, and the formation rate of S-6PPD-Q was 1.77 times faster than R-6PPD-Q. In terms of the enantioselective toxicity, the 6PPD enantiomer was highly toxic to China-specific Gobiocypris rarus (LC50, 162-201 ng/mL), and it had no enantioselective difference. 6PPD-Q was "very highly toxic" (LC50, 1.66-4.31 ng/mL) to Oncorhynchus mykiss, which is of commercial importance, and the toxicities of rac-6PPD-Q and S-6PPD-Q were 1.9 and 2.6 times higher than R-6PPD-Q. Furthermore, the formation concentrations of S-6PPD-Q and R-6PPD-Q in 6PPD water solutions were higher than the LC50 values of O. kisutch and O. mykiss, and the toxicity of 6PPD-Q was highly species-specific, which should raise concern. These results provide important information for environmental risk assessments of 6PPD and 6PPD-Q, especially from the perspective of enantiomers.
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Affiliation(s)
- Shanshan Di
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products/ Key Laboratory of Detection for Pesticide Residues and Control of Zhejiang, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, PR China; Agricultural Ministry Key Laboratory for Pesticide Residue Detection, Hangzhou 310021, PR China
| | - Zhenzhen Liu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products/ Key Laboratory of Detection for Pesticide Residues and Control of Zhejiang, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, PR China; Agricultural Ministry Key Laboratory for Pesticide Residue Detection, Hangzhou 310021, PR China
| | - Huiyu Zhao
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products/ Key Laboratory of Detection for Pesticide Residues and Control of Zhejiang, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, PR China; Agricultural Ministry Key Laboratory for Pesticide Residue Detection, Hangzhou 310021, PR China
| | - Ying Li
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products/ Key Laboratory of Detection for Pesticide Residues and Control of Zhejiang, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, PR China; Agricultural Ministry Key Laboratory for Pesticide Residue Detection, Hangzhou 310021, PR China
| | - Peipei Qi
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products/ Key Laboratory of Detection for Pesticide Residues and Control of Zhejiang, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, PR China; Agricultural Ministry Key Laboratory for Pesticide Residue Detection, Hangzhou 310021, PR China
| | - Zhiwei Wang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products/ Key Laboratory of Detection for Pesticide Residues and Control of Zhejiang, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, PR China; Agricultural Ministry Key Laboratory for Pesticide Residue Detection, Hangzhou 310021, PR China
| | - Hao Xu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products/ Key Laboratory of Detection for Pesticide Residues and Control of Zhejiang, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, PR China; Agricultural Ministry Key Laboratory for Pesticide Residue Detection, Hangzhou 310021, PR China
| | - Yuanxiang Jin
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310032, PR China.
| | - Xinquan Wang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products/ Key Laboratory of Detection for Pesticide Residues and Control of Zhejiang, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, PR China; Agricultural Ministry Key Laboratory for Pesticide Residue Detection, Hangzhou 310021, PR China.
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Xu M, Oppong-Danquah E, Wang X, Oddsson S, Abdelrahman A, Pedersen SV, Szomek M, Gylfason AE, Snorradottir BS, Christensen EA, Tasdemir D, Jameson CJ, Murad S, Andresson OS, Magnusson KP, de Boer HJ, Thorsteinsdottir M, Omarsdottir S, Heidmarsson S, Olafsdottir ES. Novel methods to characterise spatial distribution and enantiomeric composition of usnic acids in four Icelandic lichens. Phytochemistry 2022; 200:113210. [PMID: 35439526 DOI: 10.1016/j.phytochem.2022.113210] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 04/12/2022] [Accepted: 04/13/2022] [Indexed: 06/14/2023]
Abstract
Usnic acid is an antibiotic metabolite produced by a wide variety of lichenized fungal lineages. The enantiomers of usnic acid have been shown to display contrasting bioactivities, and hence it is important to determine their spatial distribution, amounts and enantiomeric ratios in lichens to understand their roles in nature and grasp their pharmaceutical potential. The overall aim of the study was to characterise the spatial distribution of the predominant usnic acid enantiomer in lichens by combining spatial imaging and chiral chromatography. Specifically, separation and quantification of usnic acid enantiomers in four common lichens in Iceland was performed using a validated chiral chromatographic method. Molecular dynamics simulation was carried out to rationalize the chiral separation mechanism. Spatial distribution of usnic acid in the lichen thallus cross-sections were analysed using Desorption Electrospray Ionization-Imaging Mass Spectrometry (DESI-IMS) and fluorescence microscopy. DESI-IMS confirmed usnic acid as a cortical compound, and revealed that usnic acid can be more concentrated around the algal vicinity. Fluorescence microscopy complemented DESI-IMS by providing more detailed distribution information. By combining results from spatial imaging and chiral separation, we were able to visualize the distribution of the predominant usnic acid enantiomer in lichen cross-sections: (+)-usnic acid in Cladonia arbuscula and Ramalina siliquosa, and (-)-usnic acid in Alectoria ochroleuca and Flavocetraria nivalis. This study provides an analytical foundation for future environmental and functional studies of usnic acid enantiomers in lichens.
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Affiliation(s)
- Maonian Xu
- Faculty of Pharmaceutical Sciences, University of Iceland, 107, Reykjavik, Iceland.
| | - Ernest Oppong-Danquah
- GEOMAR Centre for Marine Biotechnology, Research Unit Marine Natural Product Chemistry, GEOMAR Helmholtz Centre for Ocean Research Kiel, 24106, Kiel, Germany
| | - Xiaoyu Wang
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, IN, 46556, USA
| | - Sebastian Oddsson
- Faculty of Pharmaceutical Sciences, University of Iceland, 107, Reykjavik, Iceland
| | - Asmaa Abdelrahman
- Department of Green Technology, Faculty of Engineering, University of Southern Denmark, 5230, Odense, Denmark
| | - Simon Vilms Pedersen
- Department of Green Technology, Faculty of Engineering, University of Southern Denmark, 5230, Odense, Denmark; Department of Materials, Imperial College London, SW7 2BP, London, UK
| | - Maria Szomek
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, 5230, Odense, Denmark
| | - Aron Elvar Gylfason
- Faculty of Pharmaceutical Sciences, University of Iceland, 107, Reykjavik, Iceland
| | | | - Eva Arnspang Christensen
- Department of Green Technology, Faculty of Engineering, University of Southern Denmark, 5230, Odense, Denmark
| | - Deniz Tasdemir
- GEOMAR Centre for Marine Biotechnology, Research Unit Marine Natural Product Chemistry, GEOMAR Helmholtz Centre for Ocean Research Kiel, 24106, Kiel, Germany; Kiel University, Christian-Albrechts-Platz 4, 24118, Kiel, Germany
| | - Cynthia J Jameson
- Department of Chemistry, University of Illinois at Chicago, Illinois, 60607, USA
| | - Sohail Murad
- Department of Chemical Engineering, Illinois Institute of Technology, Chicago, IL, 60616, USA
| | | | - Kristinn Petur Magnusson
- Icelandic Institute of Natural History, Akureyri Division, 600, Akureyri, Iceland; Faculty of Natural Resource Sciences, University of Akureyri, 600, Akureyri, Iceland
| | - Hugo J de Boer
- Natural History Museum, University of Oslo, 0562, Oslo, Norway
| | | | - Sesselja Omarsdottir
- Faculty of Pharmaceutical Sciences, University of Iceland, 107, Reykjavik, Iceland
| | - Starri Heidmarsson
- Icelandic Institute of Natural History, Akureyri Division, 600, Akureyri, Iceland
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Zhang S, Zhou J, Li H. Chiral Covalent Organic Framework Packed Nanochannel Membrane for Enantioseparation. Angew Chem Int Ed Engl 2022; 61:e202204012. [PMID: 35475564 DOI: 10.1002/anie.202204012] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2022] [Indexed: 12/27/2022]
Abstract
A nanochannel membrane has the prospect of large-scale separation. However, selectivity in enantioseparation is a challenge, due to the size difference between nanochannels and enantiomers. Here, we compartmented nanochannels by the in situ synthesis of a L-tyrosine functionalized covalent organic framework (L-Tyr-COF). The L-Tyr-COF decreased the pore size of channels to match with naproxen enantiomers (S/R-NPX) and improved the enantioselective gating. In contrast to the surface-functionalized nanochannels (L-Tyr channel), the L-Tyr-COF packed nanochannels (L-Tyr-COF channel) exhibited high enantioselectivity for S-NPX and realized the enantioseparation with the enantiomer excess value up to 94.2 %. The separation flux through the highly porous L-Tyr-COF channel was 1.33 mmol m-2 h-1 . This study provided a size-matching strategy and the chiral covalent organic framework packed nanochannel membrane to realize enantioseparation with high selectivity and flux.
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Affiliation(s)
- Siyun Zhang
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan, 430079, P. R. China.,College of Chemical Engineering, North China University of Science and Technology, Tangshan, 063210, P. R. China
| | - Juan Zhou
- State Key Laboratory of Virology, Wuhan Institute of Virology, Center for Biosafety Mega-Science, Chinese Academy of Sciences, Wuhan, 430071, P. R. China
| | - Haibing Li
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan, 430079, P. R. China
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Gonçalves L, Cravo S, Fernandes C, Tiritan ME. Development and evaluation of Pirkle-type chiral stationary phase for flash chromatography. J Chromatogr A 2022; 1675:463156. [PMID: 35623191 DOI: 10.1016/j.chroma.2022.463156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 05/10/2022] [Accepted: 05/16/2022] [Indexed: 10/18/2022]
Abstract
Liquid chromatography is the most applied methodology for enantioseparation in preparative and semi-preparative scale; however, flash chromatography is seldom the first choice. This work proposes a new sustainable method to achieve pure enantiomers in mg scale. Herein, the functionalization of silica for flash chromatography columns with a suitable chiral selector, for subsequent quantitative enantioseparation of chiral compounds, is described. Accordingly, the Whelk-O®1 chiral selector was bonded to flash silica and packed into a reused solid phase extraction cartridge. For the evaluation of the enantioselective performance of the flash column, the enantiomers of a chiral derivative of xanthone were quantitatively enantioseparated with an average recovery of 70% and an enantiomer ratio (e.r.) of 99% and 97% for each enantiomer. Evaluation with the anti-inflammatory drug naproxen was also performed, resulting in an average recovery of 95% and 89% and 95% e.r. for each enantiomer. The flash column showed high stability and load ability, versatility, and good reproducibility.
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Affiliation(s)
- Layane Gonçalves
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), University of Porto, Avenida General Norton de Matos, s/n, 4450-208 Matosinhos, Portugal; Laboratory of Organic and Pharmaceutical Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
| | - Sara Cravo
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), University of Porto, Avenida General Norton de Matos, s/n, 4450-208 Matosinhos, Portugal; Laboratory of Organic and Pharmaceutical Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
| | - Carla Fernandes
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), University of Porto, Avenida General Norton de Matos, s/n, 4450-208 Matosinhos, Portugal; Laboratory of Organic and Pharmaceutical Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal.
| | - Maria Elizabeth Tiritan
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), University of Porto, Avenida General Norton de Matos, s/n, 4450-208 Matosinhos, Portugal; Laboratory of Organic and Pharmaceutical Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, Rua Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal; TOXRUN-Toxicology Research Unit, University Institute of Health Sciences (IUCS), CESPU CRL, 4585-116 Gandra, Portugal.
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35
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Guo C, Di S, Chen X, Wang Y, Qi P, Wang Z, Zhao H, Gu Y, Xu H, Lu Y, Wang X. Evaluation of chiral triticonazole in three kinds of fruits: enantioseparation, degradation, and dietary risk assessment. Environ Sci Pollut Res Int 2022; 29:32855-32866. [PMID: 35020143 DOI: 10.1007/s11356-021-17896-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Accepted: 11/28/2021] [Indexed: 06/14/2023]
Abstract
The enantioselective behaviors of chiral pesticides would affect the accuracy of risk assessment. This study evaluated the enantioselectivity of chiral triticonazole (a widely used fungicide) in three kinds of fruits. Firstly, the enantioseparation of triticonazole enantiomers was carried out within 1.2 min utilizing CHIRALPAK OJ-3 column with a mixture of CO2 and methanol (93:7, v/v) using SFC-MS/MS. Secondly, field trials were conducted to clarify the enantioselective degradation and residue of S-( +)-triticonazole and R-(-)-triticonazole in fruits. The initial concentrations of rac-triticonazole were 25.1-93.1 ng/g, and enantioselective degradation was observed in pear, peach, and jujube after 2 h, 10 days, and 3 days, respectively. The degradation of S-( +)-triticonazole was fastest in pear (T1/2, 2.01 days), while the T1/2 of R-(-)-triticonazole was 5.02 days. The residue concentrations of rac-triticonazole were less than the MRL set by EU (10 ng/g) on the 3rd and 21st day in pear and peach, respectively, which were lower than 10 ng/g in jujube on the 30th day (no MRL). Finally, we found that the dietary intake risks of rac-triticonazole in fruits were low for 2-7 age, 20-50 age/female, and 20-50 age/male. The current study could provide complimentary references for the rational usage, MRL formulation, and risk assessment of chiral triticonazole.
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Affiliation(s)
- Chao Guo
- Institute of Fermentation Engineering, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310032, People's Republic of China
- State Key Laboratory for Managing Biotic and Chemical Threats To the Quality and Safety of Agro-Products/Key Laboratory of Detection for Pesticide Residues and Control of Zhejiang, Institute of Agro-Product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, People's Republic of China
| | - Shanshan Di
- State Key Laboratory for Managing Biotic and Chemical Threats To the Quality and Safety of Agro-Products/Key Laboratory of Detection for Pesticide Residues and Control of Zhejiang, Institute of Agro-Product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, People's Republic of China
| | - Xiaolong Chen
- Institute of Fermentation Engineering, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310032, People's Republic of China
| | - Yanhua Wang
- State Key Laboratory for Managing Biotic and Chemical Threats To the Quality and Safety of Agro-Products/Key Laboratory of Detection for Pesticide Residues and Control of Zhejiang, Institute of Agro-Product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, People's Republic of China
| | - Peipei Qi
- State Key Laboratory for Managing Biotic and Chemical Threats To the Quality and Safety of Agro-Products/Key Laboratory of Detection for Pesticide Residues and Control of Zhejiang, Institute of Agro-Product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, People's Republic of China
| | - Zhiwei Wang
- State Key Laboratory for Managing Biotic and Chemical Threats To the Quality and Safety of Agro-Products/Key Laboratory of Detection for Pesticide Residues and Control of Zhejiang, Institute of Agro-Product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, People's Republic of China
| | - Huiyu Zhao
- State Key Laboratory for Managing Biotic and Chemical Threats To the Quality and Safety of Agro-Products/Key Laboratory of Detection for Pesticide Residues and Control of Zhejiang, Institute of Agro-Product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, People's Republic of China
| | - Yuanlin Gu
- State Key Laboratory for Managing Biotic and Chemical Threats To the Quality and Safety of Agro-Products/Key Laboratory of Detection for Pesticide Residues and Control of Zhejiang, Institute of Agro-Product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, People's Republic of China
- College of Agriculture, Northeast Agricultural University, No.600 Changjiang Road, Harbin, 150030, People's Republic of China
| | - Hao Xu
- State Key Laboratory for Managing Biotic and Chemical Threats To the Quality and Safety of Agro-Products/Key Laboratory of Detection for Pesticide Residues and Control of Zhejiang, Institute of Agro-Product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, People's Republic of China
| | - Yuele Lu
- Institute of Fermentation Engineering, College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, 310032, People's Republic of China.
| | - Xinquan Wang
- State Key Laboratory for Managing Biotic and Chemical Threats To the Quality and Safety of Agro-Products/Key Laboratory of Detection for Pesticide Residues and Control of Zhejiang, Institute of Agro-Product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, People's Republic of China
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Liu R, Tang X, Xiong R, Li L, Du X, He L. Simultaneous determination of fourteen β 2-agonist enantiomers in food animal muscles by liquid chromatography coupled with tandem mass spectrometry. J Chromatogr B Analyt Technol Biomed Life Sci 2022; 1193:123169. [PMID: 35180545 DOI: 10.1016/j.jchromb.2022.123169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 01/21/2022] [Accepted: 02/10/2022] [Indexed: 10/19/2022]
Abstract
Illegal drug residues in animal derived foods are closely related to human's life and health. Studies on illegal drug residues and the metabolism, such as β2-agonists in animals have attracted more and more attention. In most cases, β2-agonists are suppliedand used astheracemate. The metabolic process and distribution of the two enantiomers in animal tissues are different. Therefore, it is very necessary to develop a simple and fast method for chiral resolution of these drugs in animal tissues. In this paper, a reliable resolution and determination method was presented using liquid chromatography-tandem mass spectrometry (LC-MS/MS) for fourteen enantiomers of seven β2-agonist racemates, clenbuterol (CLE), salbutamol (SAL), cimaterol (CIM), terbutaline (TER), clorprenaline (CLO), tulobuterol (TUL), penbuterol (PEN) in pork, beef, and lamb muscle samples. The samples were added the internal standard solution (IS) and extracted in the alkaline medium with acetonitrile. The further sample purification was accomplished through MCX solid phase extraction cartridge. Chromatographic chiral separation was carried out on a VancoShell chiral column (100 mm × 4.6 mm, 2.7 μm) with an isocratic mobile phase consisting of methanol and 10 mmol mL-1 ammonium formate aqueous solution (85:15, v/v). Under the optimized conditions, the resolution (R) of CIM was 2.0, CLE and PEN were 1.5, the others were all greater than 1.0. Enantiomeric determination was performed in the positive electrospray ionization mode using multiple reaction monitoring (MRM). The correlation coefficient (r) in the range of 0.2-25.0 μg L-1 was above 0.993. The average recoveries at the three spiking levels ranged from 95.3% to 117.7% with the relative standard deviation (RSD) lower than 15%. The limit of detection (LOD) and the limit of quantification (LOQ) of β2-agonist enantiomers was 0.2 μg kg-1 and 0.5 μg kg-1 respectively. The method was successfully applied in the analysis and evaluation of β2-agonist enantiomers in positive food animal muscle samples, CLE, SAL, TEB and CIM enantiomers were detected. The concentrations of the corresponding enantiomers were in the range of 1.06-17.3 μg kg-1, the lowest enantiomer fraction (EF) value was 0.42, and the highest value was 0.69. The work is expected to provide a method for chiral separation and enantiomeric determination of the further study of pharmacology, toxicity and residue elimination of β2-agonist enantiomers.
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Affiliation(s)
- Rong Liu
- Quality Supervision, Inspection and Testing Center for Domestic Animal Products (Guangzhou), Ministry of Agriculture and Rural Affairs, Guangzhou 510642, China
| | - Xiaoling Tang
- National Reference Laboratory of Veterinary Drug Residues (SCAU), College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Renping Xiong
- Quality Supervision, Inspection and Testing Center for Domestic Animal Products (Guangzhou), Ministry of Agriculture and Rural Affairs, Guangzhou 510642, China
| | - Lu Li
- National Reference Laboratory of Veterinary Drug Residues (SCAU), College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Xiaoxi Du
- Quality Supervision, Inspection and Testing Center for Domestic Animal Products (Guangzhou), Ministry of Agriculture and Rural Affairs, Guangzhou 510642, China
| | - Limin He
- Quality Supervision, Inspection and Testing Center for Domestic Animal Products (Guangzhou), Ministry of Agriculture and Rural Affairs, Guangzhou 510642, China; National Reference Laboratory of Veterinary Drug Residues (SCAU), College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China.
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37
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Zhou R, Wang S, Du K, Shang Y, He J, Li J, Yao Y, Chang YX. Stereoselective enrichment and determination of citalopram enantiomers by cation-selective exhaustive injection and sweeping coupled with cyclodextrin modified electrokinetic chromatography. J Chromatogr A 2022; 1669:462951. [PMID: 35303575 DOI: 10.1016/j.chroma.2022.462951] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 03/03/2022] [Accepted: 03/07/2022] [Indexed: 11/24/2022]
Abstract
An highly sensitive, rapid and enantioselective method was developed for the enantioseparation and determination of citalopram enantiomers by cation selective exhaustive injection-sweeping-cyclodextrin modified electrokinetic chromatography (CSEI-sweeping-CDEKC). The optimized conditions were: 50 mM pH 3.0 phosphate solution with 25 mg·mL-1 S-β-CD used as background buffer, 50 mbar 300 s hydrodynamical injection of 150 mM pH 3.0 NaH2PO4 buffer followed with 5 s water plug, 10 kV 600 s electrokinetic sample injection, -20 kV CDEKC run. Under the optimized conditions, the resolution was Rs=8.04, the enrichment factor as up to 2163 folds, the LOD values were: 3.6 ng·mL-1 for R-citalopram, 4.1 ng·mL-1 for S-citalopram, and 3 ng·mL-1 for both enantiomers in plasma samples. This new method showed good precision, repeatability and stability, which had been successfully applied to the impurity inspection of escitalopram oxalate and the stereoselective pharmacokinetic study of citalopram enantiomers.
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Li M, Di X, Jiang Z. Enantioselective separation, analysis and stereoselective dissipation of the chiral pesticide cloquintocet-mexyl using a modified QuEChERS method by high-performance liquid chromatography tandem mass spectrometry. Chemosphere 2022; 291:133084. [PMID: 34848224 DOI: 10.1016/j.chemosphere.2021.133084] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 11/13/2021] [Accepted: 11/24/2021] [Indexed: 06/13/2023]
Abstract
An efficient and novel enantioseparation method was successfully developed and validated to quantify the enantiomers of cloquintocet-mexyl in soil, millet, enoki mushroom, oilseed rape, and watermelon using a modified QuEChERS technique combined with HPLC-MS/MS. This method showed reliable performances for determining both enantiomers of cloquintocet-mexyl in all five matrices. The limits of detection and limits of quantification were in the range of 0.06-0.15 μg kg-1 and 0.2-0.5 μg kg-1, respectively. Good linearities were obtained with correlation coefficients ≥0.9954. The mean recoveries were between 84.1% and 111.5%, with relative standard deviations ranging from 1.2% to 9.8% at three spiked levels. Additionally, the study of stereoselective dissipation of cloquintocet-mexyl in soil indicated that (R)-cloquintocet-mexyl was preferentially degraded. This work is the first to describe a chiral analytical method and enantioselective behavior of cloquintocet-mexyl and provide basic data for the risk evaluation of cloquintocet-mexyl in food and environmental safety.
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Affiliation(s)
- Meng Li
- School of Pharmacy, Shenyang Pharmaceutical University, Wenhua Road 103, Shenyang, 110016, Liaoning Province, People's Republic of China
| | - Xin Di
- School of Pharmacy, Shenyang Pharmaceutical University, Wenhua Road 103, Shenyang, 110016, Liaoning Province, People's Republic of China.
| | - Zhen Jiang
- School of Pharmacy, Shenyang Pharmaceutical University, Wenhua Road 103, Shenyang, 110016, Liaoning Province, People's Republic of China.
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Pandya PA, Shah PA, Shrivastav PS. Simultaneous enantioseparation and simulation studies of atenolol, metoprolol and propranolol on Chiralpak® IG column using supercritical fluid chromatography. J Pharm Anal 2022; 11:746-756. [PMID: 35028180 PMCID: PMC8740114 DOI: 10.1016/j.jpha.2020.12.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2020] [Revised: 12/13/2020] [Accepted: 12/15/2020] [Indexed: 12/11/2022] Open
Abstract
Enantioseparation of three β-blockers, i.e., atenolol, metoprolol and propranolol, was studied on amylose tris(3-chloro-5-methylphenylcarbamate) immobilized chiral stationary phase using supercritical fluid chromatography (SFC). The effect of organic modifiers (methanol, isopropanol and their mixture), column temperature and back pressure on chiral separation of β-blockers was evaluated. Optimum chromatographic separation with respect to resolution, retention, and analysis time was achieved using a mixture of CO2 and 0.1% isopropyl amine in isopropanol: methanol (50:50, V/V), in 75:25 (V/V) ratio. Under the optimized conditions, the resolution factors (Rs) and separation factors (α) were greater than 3.0 and 1.5, respectively. Further, with increase in temperature (25–45 °C) and pressure (100–150 bars) there was corresponding decrease in retention factors (k), α and Rs. However, a reverse trend (α and Rs) was observed for atenolol with increase in temperature. The thermodynamic data from van't Hoff plots revealed that the enantioseparation was enthalpy driven for metoprolol and propranolol while entropy driven for atenolol. To understand the mechanism of chiral recognition and the elution behavior of the enantiomers, molecular docking studies were performed. The binding energies obtained from simulation studies were in good agreement with the elution order found experimentally and also with the free energy values. The method was validated in the concentration range of 0.5–10 μg/mL for all the enantiomers. The limit of detection and limit of quantitation ranged from 0.126 to 0.137 μg/mL and 0.376–0.414 μg/mL, respectively. The method was used successfully to analyze these drugs in pharmaceutical preparations. Simultaneous enantioseparation of three β-blockers in a single analysis using chiral SFC Separation efficiency was mainly dependent on the nature and composition of mobile phase van't Hoff plots revealed enthalpy driven process for metoprolol and propranolol and entropy driven for atenolol Binding energies from molecular docking study were in good agreement with the elution order The results suggested hydrogen bonding and hydrophobic interactions, as the dominant interaction modes.
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Affiliation(s)
- Pranav A Pandya
- Department of Chemistry, School of Sciences, Gujarat University, Ahmedabad, 380009, India
| | - Priyanka A Shah
- Department of Chemistry, School of Sciences, Gujarat University, Ahmedabad, 380009, India
| | - Pranav S Shrivastav
- Department of Chemistry, School of Sciences, Gujarat University, Ahmedabad, 380009, India
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Bhushan R. 'Ab Ovo' Chiral Phases and Chiral Reagents for Liquid Chromatographic Separation and Isolation of Enantiomers. CHEM REC 2022; 22:e202100295. [PMID: 35005840 DOI: 10.1002/tcr.202100295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 12/20/2021] [Indexed: 11/07/2022]
Abstract
The de-novo approach of mixing chirally pure reagents or Cu(II)-L-amino acid complexes in the slurry of silica gel for preparing TLC plates was reported from author's laboratory and was successful for separation and isolation of enantiomers. Using high molar absorptivity molecules, e. g., 1,5-difluoro-2,4-dinitrobenzene and cyanuric chloride, more than 38 new chiral derivatizing reagents were synthesized in our laboratory by straightforward nucleophilic substitution with simple chiral auxiliaries. Besides, (S)-naproxen, (S)-ketoprofen, and (S)-levofloxacin were used as chiral platforms. A conceptual approach using both achiral phases in chromatography for enantioseparation was also adopted. 1 H NMR and DFT based software were used to explain structures of non-covalent and covalent diastereomeric pairs and determination of configuration and separation mechanism. The methods can be easily used to determine and control enantiomeric purity with advantages over a variety of commercial chiral phases.
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Affiliation(s)
- Ravi Bhushan
- Department of Chemistry, Indian Institute of Technology Roorkee, 247667, Roorkee, India
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41
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Lu X, Chen M, Yang J, Zhang M, Li Y, Wang Y. Surface-up construction of quinine bridged functional cyclodextrin for single-column versatile enantioseparation. J Chromatogr A 2021; 1664:462786. [PMID: 34986442 DOI: 10.1016/j.chroma.2021.462786] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 12/11/2021] [Accepted: 12/23/2021] [Indexed: 11/22/2022]
Abstract
Seeking for single-column versatile chiral separation methodology is the ultimate goal for analysts engrossed in enantioseparation. However, the versatility and selectivity are always contradictory due to negative influence among the recognition domains and the relatively low surface concentrations in a limited support surface area. Herein, we reported a novel series of quinine (QN) bridged cyclodextrin (CD) chiral stationary phases (CSPs) with satisfied surface concentration of both selectors, prepared via a facile surface-up 'thiol-ene click' approach, where QN and CD can not only nicely exhibit their individual resolution capability but also afford possible synergism in resolving difficult-to-separate analytes. QN bridged phenylcarbamoylated CD CSP exhibits powerful resolution ability by positive combining the resolving ability of QN and functional CD and achieves the resolution of almost a double number of racemates over QN or CD CSPs. Meanwhile, it exhibits comparable and even better chiral selectivity over the widely used chemical-bonded chiral column (CHIRALPAK® IA, CHIRALPAK® IB and CHIRALPAK® IC of Daicel) for the studied analytes. This work thus advances the duplex QN-CD structure as a relatively versatile platform for chiral resolution and commendably promotes the design of functional CSPs with chiral molecular bridge.
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42
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An X, Pan X, Li R, Jiang D, Dong F, Zhu W, Xu J, Liu X, Wu X, Zheng Y. Enantioselective monitoring chiral fungicide mefentrifluconazole in tomato, cucumber, pepper and its pickled products by supercritical fluid chromatography tandem mass spectrometry. Food Chem 2021; 376:131883. [PMID: 34971887 DOI: 10.1016/j.foodchem.2021.131883] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2021] [Revised: 12/12/2021] [Accepted: 12/14/2021] [Indexed: 12/19/2022]
Abstract
A fast, effective, and environmental-friendly method was developed for enantioseparation and analysis of mefentrifluconazole in vegetables based on supercritical fluid chromatography tandem mass spectrometry. The enantioselective behaviors of mefentrifluconazole enantiomers in tomato, cucumber, and pepper in the greenhouse, and pickled cucumber and pepper during processing were investigated. Mefentrifluconazole enantiomers could obtain baseline separation within 2 min. The average recoveries of all matrices ranged from 78.4% to 119.0%, with relative standard deviations less than 16.8% for two enantiomers. S-(+)-mefentrifluconazole was preferentially degraded in pepper, while there was no enantioselectivity in tomato and cucumber under field conditions. During processing, S-(+)-mefentrifluconazole was reduced preferentially than R-(-)-mefentrifluconazole in pickled cucumber and cucumber brine. Inversely, R-(-)-mefentrifluconazole degraded faster than S-(+)-mefentrifluconazole in pepper brine. But, no obvious enantioselectivity was observed in pickled pepper. The result of this study could contribute to a more accurate dietary risk assessment of mefentrifluconazole in vegetables and processed products.
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Affiliation(s)
- Xiaokang An
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China; Department of Applied Chemistry, China Agricultural University, Beijing 100193, China
| | - Xinglu Pan
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Runan Li
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Duoduo Jiang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Fengshou Dong
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
| | - Wentao Zhu
- Department of Applied Chemistry, China Agricultural University, Beijing 100193, China
| | - Jun Xu
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Xingang Liu
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Xiaohu Wu
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Yongquan Zheng
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China
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43
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Pu Y, Shi J, Shi B, Li G, Du Y. Quaternized chitin used as chiral stationary phase for HPLC and the high enantioseparation of 1,2,3,4-tetrahydro-1-naphthalenamine racemates. Int J Biol Macromol 2021; 193:809-813. [PMID: 34728299 DOI: 10.1016/j.ijbiomac.2021.10.202] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 10/19/2021] [Accepted: 10/26/2021] [Indexed: 11/30/2022]
Abstract
Quaternized chitin (QC) with different degrees of substitution (DSs) and molecular weight (Mw) were homogeneously synthesized. Eight novel chiral stationary phases (CSPs) for HPLC were prepared by coating the QC on 3-aminopropyl silica gel, which were firstly used to separate 1,2,3,4-tetrahydro-1-naphthalenamine (THNA) racemates. Enantioseparation capability of the CSPs was evaluated and the influence factors including DS and Mw of QCs were explored respectively. The results demonstrated that the successful separation of THNA enantiomers was obtained by all the new CSPs of the chitin derivatives. Resolution (Rs) increased from 1.12 to 1.58 with the increase of DS of QC from 0.40 to 0.62, while the Rs decreased with the reduction of Mw of the products from 2.8 × 105 to 9.7 × 104. The maximum Rs is 2.29. A simple pathway for the fabrication of novel CSPs of cationic chitin derivatives is developed, which has potential application for the separation of THAN racemates.
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Affiliation(s)
- Yuanlin Pu
- Pediatric Intensive Care Unit, The Central Hospital of Enshi Tujia and Miao Autonomous Prefecture, Enshi 445000, China
| | - Jie Shi
- School of Chemical and Environmental Engineering, Key Laboratory of Biological Resources Protection and Utilization of Hubei Province, Hubei Minzu University, Enshi 445000, China
| | - Boan Shi
- School of Chemical and Environmental Engineering, Key Laboratory of Biological Resources Protection and Utilization of Hubei Province, Hubei Minzu University, Enshi 445000, China
| | - Guoxiang Li
- School of Chemical and Environmental Engineering, Key Laboratory of Biological Resources Protection and Utilization of Hubei Province, Hubei Minzu University, Enshi 445000, China.
| | - Yumin Du
- School of Resource and Environmental Science, Wuhan University, Wuhan 430079, China
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Li L, Li C, Jia L. Unlocking the potential of Escherichia coli modified magnetic particles for chiral discrimination of racemic tryptophan. J Chromatogr A 2021; 1659:462638. [PMID: 34731753 DOI: 10.1016/j.chroma.2021.462638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2021] [Revised: 10/18/2021] [Accepted: 10/20/2021] [Indexed: 11/25/2022]
Abstract
Enzymes possess a highly specific affinity toward their substrates. In this study, an enzyme-based biological method was established for chiral discrimination of D/L-tryptophan (Trp). The polydopamine modified magnetic particles (PDA@Fe3O4) were prepared for immobilization of the genetically engineered bacterium Escherichia coli (E. coli) DH5α. The bacteria-magnetic particles conjugates (bacteria@PDA@Fe3O4) demonstrate excellent chiral discrimination performance toward D/L-Trp at pH 7.0 and 45 °C. The investigation for the principle exhibits that the immobilized E. coli DH5α can produce tryptophanase, and the enzyme can selectively recognize and degrade L-Trp. The Michaelis constant of tryptophanase produced by bacteria@PDA@Fe3O4 was measured to be 25.7 µg mL-1. This method avoids the purification of tryptophanase and unlocks the potential of bacteria modified magnetic particles for chiral discrimination of racemic tryptophan.
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Affiliation(s)
- Ling Li
- Ministry of Education Key Laboratory of Laser Life Science & Guangdong Provincial Key Laboratory of Laser Life Science & Guangzhou Key Laboratory of Spectral Analysis and Functional Probes, College of Biophotonics, South China Normal University, Guangzhou 510631, China
| | - Chuang Li
- Ministry of Education Key Laboratory of Laser Life Science & Guangdong Provincial Key Laboratory of Laser Life Science & Guangzhou Key Laboratory of Spectral Analysis and Functional Probes, College of Biophotonics, South China Normal University, Guangzhou 510631, China
| | - Li Jia
- Ministry of Education Key Laboratory of Laser Life Science & Guangdong Provincial Key Laboratory of Laser Life Science & Guangzhou Key Laboratory of Spectral Analysis and Functional Probes, College of Biophotonics, South China Normal University, Guangzhou 510631, China.
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45
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Agathokleous EA, Stavrou IJ, Kapnissi-Christodoulou C. Comparison of cyclofructan-, cyclodextrin-, and polysaccharide-based chiral stationary phases for the separation of pharmaceuticals. Anal Bioanal Chem 2021. [PMID: 34779900 DOI: 10.1007/s00216-021-03754-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 09/28/2021] [Accepted: 10/26/2021] [Indexed: 10/19/2022]
Abstract
In this study, cyclofructan (CF)-, cyclodextrin (CD)-, and polysaccharide-based chiral stationary phases (CSPs) were exploited in high-performance liquid chromatography (HPLC) for the chiral separations of different clinically and pharmaceutically important compounds. In particular, R-naphthylethyl carbamate CF6 (RN-CF6), 3,5-dimethylphenyl carbamate CF7 (DMP-CF7), neutral beta cyclodextrin (β-CD), 3,5-dimethylphenyl carbamate β-CD (DMP-β-CD), and cellulose tris-(3,5-dimethylphenylcarbamate) (Cellulose-Tris DMP) columns were utilized under isocratic elution. The performance of these CSPs as chiral separation media was evaluated by use of nine analytes: acidic, basic, and amphiprotic. A possible correlation between the functional groups of these analytes and the chiral-recognition ability of each chiral column was also examined. The enantioseparations were optimized by varying different parameters, such as mobile phase additives, column temperature, and flow rate. Finally, a comparison was made between all CSPs, and it was expressed in terms of resolution (RS), efficiency (N), selectivity (α), retention factors (k1', k2') and analysis time (tR1, tR2). It was observed that RN-CF6 was the most suitable and efficient CSP for the chiral separation of various types of analytes, including acids, primary and tertiary amines, alcohols, and many neutral compounds. It was the only CSP that provided baseline enantioseparation of thyroxine (RS = 1.6) and cetirizine (RS = 2.0).
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46
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Krait S, Salgado A, Malanga M, Sohajda T, Benkovics G, Szakály PS, Chankvetadze B, Scriba GKE. Structural characterization of methyl-β-cyclodextrins by high-performance liquid chromatography and nuclear magnetic resonance spectroscopy and effect of their isomeric composition on the capillary electrophoresis enantioseparation of daclatasvir. J Chromatogr A 2021; 1661:462675. [PMID: 34890854 DOI: 10.1016/j.chroma.2021.462675] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 10/20/2021] [Accepted: 11/04/2021] [Indexed: 10/19/2022]
Abstract
The separation of daclatasvir and its R,R,R,R-enantiomer was studied by capillary electrophoresis using various randomly methylated β-CDs and the single isomer heptakis(2,6-di-O-methyl)-β-CD (2,6-DM-β-CD) as chiral selectors in an acidic background electrolyte. Opposite enantiomer migration order was observed for randomly substituted CDs compared to 2,6-DM-β-CD as well as methylated β-CDs with different composition according to the specifications of the manufacturers. HPLC and NMR analyses confirmed that the presence of a high 2,6-DM-β-CD content in the CDs enables to achieve the migration order R,R,R,R-enantiomer > daclatasvir. In contrast, products with low 2,6-DM-β-CD isomer content and/or the presence of a large amount of methylated CD isomers, in which d-glucopyranose moieties are not substituted in either position 2 or 6, displayed the opposite enantiomer migration order daclatasvir > R,R,R,R-enantiomer. The study indicated the importance of the type and composition of derivatized CDs on chiral separations in capillary electrophoresis as well as the importance of proper quality control for cyclodextrin manufacturers. Moreover, the observed migration order could be rationalized based on the composition and substitution pattern of the CDs.
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Affiliation(s)
- Sulaiman Krait
- Department of Pharmaceutical/Medicinal Chemistry, Friedrich-Schiller-University Jena, Philosophenweg 14, Jena 07743, Germany
| | - Antonio Salgado
- NMR Spectroscopy Center (CERMN), CAI Químicas, Faculty of Pharmacy, University of Alcalá, Madrid, Alcalá de Henares 28805, Spain
| | - Milo Malanga
- CycloLab Ltd., Illatos út 7, Budapest 1097, Hungary
| | | | | | | | - Bezhan Chankvetadze
- Institute of Physical and Analytical Chemistry, School of Exact and Natural Sciences, Tbilisi State University, Tbilisi 0179, Georgia
| | - Gerhard K E Scriba
- Department of Pharmaceutical/Medicinal Chemistry, Friedrich-Schiller-University Jena, Philosophenweg 14, Jena 07743, Germany.
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Wang T, Yang L, Cheng Y, Zhang Y, Ye J, Chu Q, Cheng G. Evaluation of homochiral zeolitic imidazolate framework-8 supported open-tubular column by miniaturized capillary electrochromatography with amperometric detection. Mikrochim Acta 2021; 188:375. [PMID: 34635945 DOI: 10.1007/s00604-021-05030-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Accepted: 09/15/2021] [Indexed: 12/21/2022]
Abstract
A novel kind of chiral open-tubular (OT) column was established with homochiral zeolitic imidazolate framework-8 nanomaterials using L-histidine as the chiral carbon center (L-His-ZIF-8). The morphologies of L-His-ZIF-8 nanoparticles and chiral OT column were characterized by scanning electron microscopy. The effects of L-His-ZIF-8 concentrations, pH values, and concentrations of the running buffer on the resolution of the selected chiral compounds were investigated based on miniaturized capillary electrochromatography with amperometric detection system (mini-CEC-AD), respectively. The separation performances of the prepared L-His-ZIF-8@OT chiral columns were explored under the optimal conditions, and the RSDs of run-to-run, day-to-day, and column-to-column reproducibility were less than 6.7% using salbutamol raceme as the model enantiomers. The prepared chiral OT columns have been successfully applied to the enantioseparation of one pair of amino acid enantiomers, two pairs of racemic drugs, and three pairs of neurotransmitter enantiomers. Under the optimum conditions, the prepared OT columns were applied to real-world sample analysis of salbutamol aerosol. The limits of detection of salbutamol raceme were 0.90 μg·mL-1 (S/N = 3), and the recovery was 80.4-82.7%. The assay results indicated that this kind of chiral OT column modified with homochiral L-His-ZIF-8 possesses good reproducibility and stability. This developed mini-OT-CEC-AD system has some attractive characteristics of sensitivity and low cost, providing a potential way for the separation of chiral compounds.
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48
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Wang Y, Wang X, Sun Q, Li R, Ji Y. Facile separation of enantiomers via covalent organic framework bonded stationary phase. Mikrochim Acta 2021; 188:367. [PMID: 34617147 DOI: 10.1007/s00604-021-04925-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Accepted: 07/04/2021] [Indexed: 12/12/2022]
Abstract
Covalent organic frameworks (COFs), a type of crystalline polymers, have attracted increasing interest because of their controllability of geometry and functionality. Featuring infinitely extended networks and tremendous interaction sites, COFs emerge as a potential platform for separation science. Here, a novel chiral COF (β-CD COFBPDA) constructed by the imine condensation of 4,4'-biphenyldicarboxaldehyde and heptakis(6-amino-6-deoxy)-β-cyclodextrin was introduced into an electrochromatographic system via a photopolymerization method and applied to the separation of enantiomers. The structure and properties of as-synthesized β-CD COFBPDA were investigated by powder X-ray diffraction (PXRD) patterns, Fourier transform infrared (FT-IR) spectroscopy, thermogravimetric analysis (TGA), and N2adsorption-desorption isotherms. It was proved that β-CD COFBPDA was provided with larger pore size and BET surface area. The β-CD COFBPDA coating endowed the chiral stationary phase with superior three-dimensional orientation, and realized satisfactory separation with improved selectivity and column efficiency for a dozen racemic drugs. Under the optimized conditions, homatropine, ondansetron, metoprolol, terbutaline, tulobuterol, and promethazine were all baseline separated with resolution values of 2.24, 2.03, 1.65, 1.62, 1.60, and 1.58, respectively. The results indicate the high perspective of COF modified stationary in enantioseparation.
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Affiliation(s)
- Yuying Wang
- Department of Analytical Chemistry, China Pharmaceutical University, 24 TongJiaXiang, Nanjing, 210009, Jiangsu, China.,Key Laboratory of Drug Quality Control and Pharmacovigilance, Ministry of Education, Nanjing, 210009, China
| | - Xuehua Wang
- Department of Analytical Chemistry, China Pharmaceutical University, 24 TongJiaXiang, Nanjing, 210009, Jiangsu, China.,Key Laboratory of Drug Quality Control and Pharmacovigilance, Ministry of Education, Nanjing, 210009, China
| | - Qiuyue Sun
- Department of Analytical Chemistry, China Pharmaceutical University, 24 TongJiaXiang, Nanjing, 210009, Jiangsu, China.,Key Laboratory of Drug Quality Control and Pharmacovigilance, Ministry of Education, Nanjing, 210009, China
| | - Ruijun Li
- Department of Analytical Chemistry, China Pharmaceutical University, 24 TongJiaXiang, Nanjing, 210009, Jiangsu, China.,Key Laboratory of Drug Quality Control and Pharmacovigilance, Ministry of Education, Nanjing, 210009, China
| | - Yibing Ji
- Department of Analytical Chemistry, China Pharmaceutical University, 24 TongJiaXiang, Nanjing, 210009, Jiangsu, China. .,Key Laboratory of Drug Quality Control and Pharmacovigilance, Ministry of Education, Nanjing, 210009, China.
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Konjaria ML, Scriba GKE. Effects of amino acid-derived chiral ionic liquids on cyclodextrin-mediated capillary electrophoresis enantioseparations of dipeptides. J Chromatogr A 2021; 1652:462342. [PMID: 34174715 DOI: 10.1016/j.chroma.2021.462342] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 06/03/2021] [Accepted: 06/08/2021] [Indexed: 11/20/2022]
Abstract
The synergistic effect of chiral ionic liquids composed of tetraalkylammonium ions and the amino acids Asn, Asp or Pro on the enantioseparations of dipeptides mediated by β-cyclodextrin and 2-hydroxypropyl-β-cyclodextrin in capillary electrophoresis was studied. Addition of a chiral ionic liquid resulted in a concentration-dependent increase in the enantioresolutions compared to the sole presence of a cyclodextrin in the background electrolyte. The extent varied with the tetraalkylammonium cation (tetramethylammonium versus tetrabutylammonium) as well as the amino acid component of the ionic liquid. The presence of a chiral ionic liquid did not counteract the pH-dependent reversal of the enantiomer migration order of the dipeptides Ala-Phe, Ala-Tyr and Phe-Phe when increasing the pH of the background electrolyte from 2.5 to 3.5. Comparing the effect of a chiral ionic liquid based on Asp with the addition of equimolar concentrations of the individual components of the ionic liquid, a diverse picture was observed. In some cases, higher resolution values were obtained with the chiral ionic liquid, while for other cases superior enantioseparations were obtained upon separate addition of the amino acid component and a tetraalkylammonium chloride. With regard to the stereochemistry of the amino acid, a superior effect was typically observed using the l-configured amino acid, but in some cases higher resolution values were found in the presence of d-Asp. The rationale for the diverse observations is not obvious and may be due to the zwitterionic nature of analytes as well as the amino acid component of the chiral ionic liquid.
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Chen W, Jiang JZ, Qiu GS, Tang S, Bai ZW. The interactions between chiral analytes and chitosan-based chiral stationary phases during enantioseparation. J Chromatogr A 2021; 1650:462259. [PMID: 34090134 DOI: 10.1016/j.chroma.2021.462259] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Revised: 05/12/2021] [Accepted: 05/14/2021] [Indexed: 11/16/2022]
Abstract
The goal of the present study was to disclose the interactions between chitosan-type chiral selectors (CSs) and chiral analytes during enantioseparation. Hence, six chitosan 3,6-bis(phenylcarbamate)-2-(cyclohexylmethylurea)s were synthesized and characterized. These chitosan derivatives were employed as CSs with which the corresponding coated-type chiral stationary phases (CSPs) were prepared. According to the nature and position of the substituents on the phenyl group, the CSs and CSPs were divided into three sets. The counterparts of the three sets were 3,5-diMe versus 3,5-diCl, 4-Me versus 4-Cl and 3-Me versus 3-Cl. The enantioseparation capability of the CSPs was evaluated with high-performance liquid chromatography. The CSPs demonstrated a good enantioseparation capability to the tested chiral analytes. In enantioselectivity, the CSs with 3,5-diCl and with 4-Me roughly were better than the counterparts with 3,5-diMe and with 4-Cl respectively. The CS with 3-Me enantiomerically recognized more analytes than the one with 3-Cl, but showed lower separation factors in more enantioseparations. The acidity of the amide hydrogen in the phenylcarbamates was investigated with density functional theory calculations and 1H NMR measurements. The trend of the acidity variation with different substituents on the phenyl group was confirmed by the retention factors of acetone on the CSPs. Compared the retention factors of analytes on every set of the counterparts, the formation of hydrogen bond (HB) in enantioseparation could be outlined as follows: when the CSs interacted with chiral analytes without reactive hydrogen but with lone paired electrons, the carbamate N‒Hs in the CSs were HB donors and the analytes were HB acceptors; if the CSs interacted with analytes with a reactive hydrogen, the role of the CSs in HB formation was related to the acidity of the reactive hydrogen; the patterns of HB formation between the CSs and analytes were also impacted by compositions of mobile phases, in addition to the nature, number and position of substituents on the phenyl group. Based on the discussion, chiral recognition mechanism could be understood in more detail. Besides, the strategy to improve enantioseparation capability of a CSP by introducing a substituent onto phenyl group was clarified and further comprehended.
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Affiliation(s)
- Wei Chen
- School of Chemistry and Environmental Engineering, China
| | - Ji-Zhou Jiang
- School of Chemistry and Environmental Engineering, China; School of Environmental Ecology and Biological Engineering, Wuhan Institute of Technology, Wuhan 430205, China
| | - Guo-Song Qiu
- School of Chemistry and Environmental Engineering, China
| | - Sheng Tang
- School of Chemistry and Environmental Engineering, China
| | - Zheng-Wu Bai
- School of Chemistry and Environmental Engineering, China.
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